Updated on 2022/11/29

写真a

 
MATSUOKA Atsushi
 
Organization
Academic Assembly Institute of Science and Technology CHIKYU SEIBUTSU KAGAKU KEIRETU Professor
Graduate School of Science and Technology Environmental Science and Technology Professor
Faculty of Science Department of Science Professor
Title
Professor
External link

Degree

  • 理学博士 ( 1986.3   大阪市立大学 )

Research Interests

  • Paleoceanography

  • radiolaria

  • Mesozoic

  • アンモナイト

Research Areas

  • Natural Science / Biogeosciences

  • Natural Science / Solid earth sciences

Research History (researchmap)

  • The Open University of Japan

    2021.4 - 2021.7

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  • 放送大学   非常勤講師

    2019.4 - 2019.7

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  • Niigata University   Faculty of Science Department of Science   Professor

    2017.4

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  • The Open University of Japan

    2015.4 - 2015.7

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  • The Open University of Japan

    2012.4 - 2012.9

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  • Niigata University   Graduate School of Science and Technology Environmental Science and Technology   Professor

    2010.4

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  • The Open University of Japan

    2007.4 - 2007.7

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  • Niigata University   Faculty of Science Department of Geology   Professor

    2002.4 - 2017.3

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  • Niigata University   Graduate School of Science and Technology   Professor

    2002.4 - 2010.3

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  • Niigata University   Faculty of Science   Associate Professor (as old post name)

    1994.4 - 2002.3

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  • Niigata University   College of General Education   Associate Professor (as old post name)

    1993.3 - 1994.3

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  • Niigata University   College of General Education   Lecturer

    1987.6 - 1993.2

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Research History

  • Niigata University   Faculty of Science Department of Science   Professor

    2017.4

  • Niigata University   Graduate School of Science and Technology Environmental Science and Technology   Professor

    2010.4

  • Niigata University   Graduate School of Science and Technology Environmental Science and Technology   Professor

    2010.4

  • Niigata University   Faculty of Science Department of Geology   Professor

    2002.4 - 2017.3

  • Niigata University   Faculty of Science   Associate Professor (as old post name)

    1994.4 - 2002.3

  • Niigata University   College of General Education   Associate Professor (as old post name)

    1993.3 - 1994.3

  • Niigata University   College of General Education   Lecturer

    1987.6 - 1993.2

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Professional Memberships

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Committee Memberships

  • International Subcommission on Cretaceous Stratigraphy   Berriasian Working Group Member  

    2021.2   

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  • 日本古生物学会   Paleontological Research誌 編集委員  

    2017.10   

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  •   形の科学会 学会賞幹事  

    2016.5 - 2020.11   

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  •   Revue de micropaleontologie, Editorial Board Member  

    2015.4   

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    Committee type:Academic society

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  • International Association of Radiolarists   - President  

    2015.3 - 2017.11   

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  • 形の科学会   庶務幹事  

    2012.6 - 2016.5   

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  • 日本地質学会   代議員  

    2012.5 - 2018.5   

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  • International Subcommission on Jurassic Stratigraphy   - Voting Member  

    2008.9 - 2020.10   

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  •   形の科学会 FORMA誌,Associate Editor  

    2008.6   

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  • 形の科学会   会長  

    2008.6 - 2012.6   

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  • 日本古生物学会   評議員  

    2007.6 - 2019.6   

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  • 日本地質学会   評議員(理事)  

    2004.9 - 2012.5   

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  • 日本古生物学会   Paleontological Research誌 編集委員  

    2003.6 - 2005.5   

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  • International Subcommission on Jurassic Stratigraphy   - Corresponding Member  

    1998.9 - 2008.8   

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  •   The Island Arc Associate Editor  

    1998.1 - 2006.12   

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  • 日本地質学会   地質学雑誌 編集委員  

    1997.7 - 2004.10   

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  • 形の科学会   運営委員  

    1995.1   

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Papers

  • Early Jurassic molluscan fossils from the Kuruma Group around Mt. Kikuishi on the Tsugami Shindo Trail, Itoigawa, Niigata, central Japan. Reviewed

    Matsuoka, A, Kawajiri, T, Katori, T, Ogawara, T, Ibaraki, Y, Nakada, K

    Science Reports of Niigata University (Geology)   37   35 - 44   2022.3

  • Permian spicular chert from the east of Mt. Asahi-dake, Itoigawa City, Niigata Prefecture, Japan. Reviewed

    Ito, T, Ogawara, T, Katori, T, Matsuoka, A, Kurihara, T, Nakamura, Y, Yoshida, T, Suzuki, K, Kawaguchi, Y

    Science Reports of Niigata University (Geology)   37   1 - 14   2022.3

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    Language:English   Publishing type:Research paper (bulletin of university, research institution)  

    File: Ito_et_al_2022.pdf

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  • The late Pliensbachian (Early Jurassic) ammonoid Amaltheus in Japan: systematics and biostratigraphic and paleobiogeographic significance Reviewed

    Kentaro Nakada, Michiharu Goto, Christian Meister, Atsushi Matsuoka

    Journal of Paleontology   1 - 18   2021.5

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    Publishing type:Research paper (scientific journal)   Publisher:Cambridge University Press (CUP)  

    <title>Abstract</title>
    The genus <italic>Amaltheus</italic>, one of the representative late Pliensbachian ammonoids, has biostratigraphic and paleobiogeographic significance in Japan. Four species, <italic>Amaltheus stokesi</italic> (Sowerby, 1818), <italic>A. margaritatus</italic> de Montfort, 1808, <italic>A. repressus</italic> Dagis, 1976, and <italic>A. orientalis</italic> new species, have been found in the Kuruma Group in central Japan; <italic>A. stokesi</italic> and <italic>A. margaritatus</italic> are also from the Toyora Group in southwest Japan. On the basis of taxonomic analysis of the genus <italic>Amaltheus</italic>, we distinguish two successive ammonoid biozones in the lower part of the Teradani Formation of the Kuruma Group: the <italic>Amaltheus stokesi</italic>–<italic>Amaltheus repressus</italic> and the <italic>Amaltheus margaritatus</italic> assemblage zones, in stratigraphic ascending order. This study also establishes the presence of the <italic>Amaltheus stokesi</italic> Assemblage Zone in the Higashinagano Formation of the Toyora Group. The <italic>stokesi</italic>–<italic>repressus</italic> and the <italic>stokesi</italic> assemblage zones correspond biostratigraphically to the <italic>Amaltheus stokesi</italic> Standard Subzone of the <italic>margaritatus</italic> Zone. The <italic>margaritatus</italic> Assemblage Zone is correlated with the <italic>Amaltheus subnodosus</italic> and <italic>Amaltheus gibbosus</italic> standard subzones. The Japanese early–middle late Pliensbachian ammonoid faunas are composed almost entirely of pan-Boreal and Arctic species of the genus <italic>Amaltheus</italic>. This faunal composition has an affinity with that of the Northeast Russian region, and thus suggests a strong paleobiogeographic relationship between East Asian and Northeast Russian faunas throughout this time interval.


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    DOI: 10.1017/jpa.2021.39

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  • Growth pattern of the siliceous skeletons of living Spumellaria (Radiolaria) from the Kuroshio Current, offshore southwestern Shikoku Island, Japan Reviewed

    Rie S. Hori, Takenobu Shinki, Akihiro Iwakiri, Atsushi Matsuoka, Noritoshi Suzuki, Kaoru Ogane, Akihiro Tuji

    Revue de Micropaléontologie   100504 - 100504   2021.5

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.revmic.2021.100504

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  • Radiolarian occurrences from the Jurassic–Cretaceous transition beds in the Maiolica Formation of the Bosso Valley section, Northern Apennines, central Italy Reviewed

    Atsushi Matsuoka, Xin Li, Marco Chiari, Angela Bertinelli

    Cretaceous Research   114   104500 - 104500   2020.10

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.cretres.2020.104500

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  • Origami Reconstruction of the Cortical Shell Structures of Radiolarian genus Pantanellium from Planar Graphs Reviewed

    Takashi Yoshino, Atsushi Matsuoka, Naoko Kishimoto

    Revue de Micropaléontologie   67   100423 - 100423   2020.7

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.revmic.2020.100423

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  • Progress and problems in the Radiolarian research along the Yarlung–Tsangpo Suture Zone Reviewed

    Li, X, Luo, H, Yang, Q, Wu, H, Wang, Y, Matsuoka, A

    Acta Micropalaeontologica Sinica   37 ( 2 )   159 - 174   2020.6

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  • Paleobiogeographic distribution of the Early Cretaceous radiolarian Turbocapsula costata and its correlation potential Reviewed

    Xin Li, Atsushi Matsuoka

    PALEONTOLOGICAL RESEARCH   24 ( 2 )   89 - 102   2020.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:PALAEONTOLOGICAL SOC JAPAN  

    Turbocapsula, having three (or four) segments with a characteristic oval shape and a hemi-closed segmental end, is a radiolarian genus with a high stratigraphic value due to its phyletic evolution in the mid-Cretaceous period. An overview of lithology, depositional setting, associated fossil records, and paleomagnetic data from each locality of Turbocapsula costata (Wu) is summarized. All these data lead to the conclusion that locations of known T. costata-bearing strata are restricted to the low- to mid-latitude Mediterranean and eastern Tethys of the Tethyan realm. The results emphasize that the phyletic evolution of the genus Turbocapsula is significant in correlations within the Tethys. The zonation established by the phyletic evolution of the genus Turbocapsula cannot be utilized for Early Cretaceous zonal correlations beyond the T. costata territory.

    DOI: 10.2517/2019PR015

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  • A morphological analysis of the flat-shaped spumellarian radiolarian Dictyocoryne: morpho-functional insights into planktonic mode of life Reviewed

    Yuta Shiino, Toshiyuki Kurihara, Ryo Ichinohe, Naoko Kishimoto, Takashi Yoshino, Atsushi Matsuoka

    PALEONTOLOGICAL RESEARCH   24 ( 2 )   134 - 146   2020.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:PALAEONTOLOGICAL SOC JAPAN  

    The three-dimensional morphology of the flat-shaped spumellarian radiolarian Dictyocoryne was analysed using a microfocus X-ray CT with a special focus on whether it was capable of a planktonic lifestyle. Two types of 3D models, the shell model, which represents a realistic 3D shell, and the wrapped model, which mimics the whole body outline without pseudopodia, were reconstructed in order to estimate volume, surface area, and centres of gravity for the shell model and buoyancy for the wrapped model. The calculated values showed that the volume of shell with respect to the total volume was negatively allometric, regardless of the differences between threshold settings. Stepwise secretions of the patagium layer may result in a comparatively lightweight shell, thereby decreasing the total density during growth but not below the density of seawater. Estimated positions for the centres of gravity and buoyancy were too close to maintain an autonomous posture while floating. Instead, the ratio between surface area and volume was greater than that in an ideal sphere. Such a broad surface area could obtain the viscous resistance necessary for sinking retardation. Spumellarian radiolarians, including Dictyocoryne, have photosynthetic symbionts located primarily in the ectoplasmic layer, which is a habitable space that can be maximised within the larger surface area. Given that radiolarians float when extending their pseudopodia, it can be hypothesised that pseudopodia may play a role in the adjustment of life posture in a hydraulically unstable shell, which can be integrated into sinking retardation, enhancement of photosynthetic activity and manoeuvrability of life posture within a unique flat-shaped morphogenesis.

    DOI: 10.2517/2019PR020

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  • Plant fossils from the Lower Cretaceous Tetori Group in the Itoigawa area, Niigata Prefecture, central Japan Reviewed

    Yusuke SAKAI, Tsuyoshi ITO, Yousuke IBARAKI, Atsushi MATSUOKA

    Science Reports of Niigata University (Geology)   ( 35 )   33 - 43   2020.3

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    Language:English   Publishing type:Research paper (bulletin of university, research institution)  

    File: Sakai_et_al_2020.pdf

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  • Early Cretaceous plants from the Itsuki and Nochino formations of the Tetori Group in the Kuzuryu area, central Japan and their paleoclimatic implications Reviewed

    Yusuke Sakai, Yongdong Wang, Atsushi Matsuoka

    CRETACEOUS RESEARCH   105   2020.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD  

    Early Cretaceous plants are widely distributed in a number of localities and horizons in the Tetori Group in central Japan. However, the stratigraphical occurrences and diversity patterns of some plant groups and their palaeoclimatic implications are not well understood. In this study, we report the diverse fossil plants recently collected from the Lower Cretaceous Itsuki and Nochino formations of the Tetori Group in the Kuzuryu area, central Japan. The plant assemblage from the lower and middle part of the Itsuki Formation has no Ryoseki-type floral element, whereas the assemblage from the Nochino Formation has some Ryoseki-type floral elements such as microphyllous conifers. The occurrence of Ryoseki-type floral elements is consistent with floral change that conifers are more diverse in the Nochino Formation than in the Itsuki Formation, and a warming and drying climate trend from the Itsuki Formation to the Nochino Formation is recognized. The Early Cretaceous warming and drying trend recorded in floral assemblages of the Tetori Group is considered to reflect the paleoclimate transition represented by drastic shrinking of the Hadley circulation in the mid-latitudes of East Asia, thus providing evidence for understanding the climatic switch pattern during the Early Cretaceous. (C) 2019 Published by Elsevier Ltd.

    DOI: 10.1016/j.cretres.2019.01.018

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  • Correlation of Early Cretaceous radiolarian assemblages from southern Tibet and central Italy Reviewed

    Xin Li, , Atsushi Matsuoka, , Angela Bertinelli, , Marco Chiari, , Chengshan Wang

    Cretaceous Research   105 ( 104046 )   2020.1

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  • Geometrical Properties of Skeletal Structures of Radiolarian Genus Didymocyrtis Reviewed

    Takashi Yoshino, Atsushi Matsuoka, Naoko Kishimoto

    Image Analysis and Stereology   38 ( 3 )   237 - 244   2019.12

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    DOI: 10.5566/ias.2089

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  • Middle and Late Jurassic radiolarians from Nadanhada terrane of eastern Heilongjiang Province, northeastern China Reviewed

    Gang Li, Atsushi Matsuoka, Qun Yang, Jingeng Sha

    PALEONTOLOGICAL RESEARCH   23 ( 4 )   291 - 313   2019.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:PALAEONTOLOGICAL SOC JAPAN  

    The Nadanhada terrane of northeastern Heilongjiang, northeastern China is composed of Jurassic accretionary complexes (i.e., the Yuejinshan Complex in the west, the Raohe Complex in the east) and succedent cover beds. In this paper we report two radiolarian assemblages recognized from four black clay stone samples collected from the Dalinggiao Formation in the Dajiashan area of the Raohe Complex. The Striatgjaponocapsa synconexa-"Tricolocapsa" tetragona assemblage of one sample consists of eleven species in eight genera, which indicates a middle Bathonian (Middle Jurassic) age, i.e., correlative with the uppermost Striatojaponocapsa plicarum Zone to the lower Striatojaponocapsa conexa Zone. The other three samples contain 34 species in 25 genera, which indicate a late Oxfordian-early Tithonian (Late Jurassic) age. The discovery of the Late Jurassic radiolarian assemblage indicates that the Raohe Accretionary Complex was formed during the Late Jurassic. The succedent late Tithonian-early Valanginian Buchia fauna-bearing Dong'anzhen Formation may be the earliest cover beds overlying the Raohe Accretionary Complex. Then, during the Early Cretaceous, the Nadanhada terrane received the deposition of the Aucellina bivalve fauna-bearing Dajiashan Group. This indicates paleogeographic differentiation between the Nadanhada terrane and the Tamba-Mino-Ashio terrane.

    DOI: 10.2517/2019PR006

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  • The Guadalupian (Permian) Gufeng Formation on the north margin of the South China block: A review of the lithostratigraphy, radiolarian biostratigraphy, and geochemical characteristics Reviewed

    Tsuyoshi Ito, Koji U. Takahashi, Atsushi Matsuoka, Qinglai Feng

    PALEONTOLOGICAL RESEARCH   23 ( 4 )   261 - 280   2019.10

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    The Guadalupian (Permian) Gufeng Formation, distributed over the north margin of the South China block, is characterized by siliceous rock and muddy rock and yields several representative radiolarian fossils. The lithostratigraphy, radiolarian occurrences and biostratigraphy, and geochemical characteristics of the Gufeng Formation are reviewed and summarized in this paper. The distributional area of the Gufeng Formation is subdivided into the Lower, Middle, and Upper Yangtze regions. The Gufeng Formation in the Lower Yangtze region is lithostratigraphically characterized by muddy rock, chert, and nodule-bearing muddy rock in descending order. The Gufeng Formation in the Middle Yangtze region is lithostratigraphically characterized by chert, muddy rock with carbonate, and muddy rock in ascending order. The lithostratigraphic characteristics of the "Gufeng Formation" in the south margin of the South China block greatly differ from the typical Gufeng Formation in containing fewer siliceous rocks and a large amount of elastic rocks and in having a significantly greater total thickness; therefore, this article considers that the "Gufeng Formation" in the block's south margin should be isolated from the Gufeng Formation in the block's north margin. The radiolarian biostratigraphy of the Lower and Middle Yangtze regions is composed of the Pseudoalbailella globosa, Pc. monacantha, and Follicucullus scholasticus-Ruzhencevispongus uralicus assemblage zones in ascending order. The lower Gufeng Formation has abundantly yielded the Albaillellaria; however, its occurrence ratio with respect to other radiolarian orders decreases stratigraphically upward. The geochemical characteristics indicate the following facts: (1) the siliceous rocks are generally biogenic; (2) even though a previous study concluded that the organic matter within the chert was originated from terrestrial or reworked organic matter, the origin remains debatable; and (3) the Gufeng Formation was formed on a continental shelf. The geochemical characteristics, in addition to the lithological characteristics, indicate that the redox conditions of the Gufeng Formation in the Lower Yangtze region changed from aerobic to suboxic to anoxic, while that in the Middle Yangtze region changed from oxic to anoxic to suboxic.

    DOI: 10.2517/2018PR025

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  • Late Anisian radiolarian assemblages from the Yarlung-Tsangpo Suture Zone in the Jinlu area, Zedong, southern Tibet: Implications for the evolution of Neotethys Reviewed

    Dishu Chen, Hui Luo, Xueheng Wang, Bo Xu, Atsushi Matsuoka

    ISLAND ARC   28 ( 4 )   2019.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:WILEY  

    Abundant Triassic radiolarian fossils were obtained from varicolored bedded cherts exposed in the Buruocang section near Jinlu village, Zedong, southern Tibet. The radiolarian-bearing rocks represent fragmented remnants of the Neotethys oceanic sediments belonging to the melange complex of the east part of the Yarlung-Tsangpo Suture Zone. Two new middle Late Anisian radiolarian assemblages recognized from this section named Oertlispongus inaequispinosus and Triassocampe deweveri, respectively, are compared with those known from Europe, Far East Russia, Japan, and Turkey. These Anisian radiolarian fossils are the first reported in southern Tibet and the oldest radiolarian record within the Yarlung-Tsangpo Suture Zone. They improve time constraints for the evolution of Neotethys in southern Tibet.

    DOI: 10.1111/iar.12302

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  • Triassic marine Os isotope record from a pelagic chert succession, Sakahogi section, Mino Belt, southwest Japan Reviewed

    Tatsuo Nozaki, Takashi Nikaido, Tetsuji Onoue, Yutaro Takaya, Keiko Sato, Jun Ichi Kimura, Qing Chang, Daisuke Yamashita, Honami Sato, Katsuhiko Suzuki, Yasuhiro Kato, Atsushi Matsuoka

    Journal of Asian Earth Sciences: X   1   2019.6

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    © 2018 The Author(s) Pelagic cherts preserved in accretionary complexes represent former seafloor sediment that can retain geochemical evidence of paleoceanographic conditions that predate the oldest extant oceanic crust. The ratio of Os isotopes in seawater, in particular, is of wide interest as a source of insight into notable geologic events such as oceanic anoxic events, rapid global warming episodes, and eruption of large igneous provinces, but marine Os isotope records from before 80 Ma are scarce. We present a record of secular variations of marine Os isotope ratios from a thick, continuous succession of Middle and Upper Triassic pelagic chert in the Sakahogi section of the Mino Belt accretionary complex. Initial Os isotope ratios (187Os/188Os) have a wide range in this succession, from 0.197 to 0.813. The variations in this Os record are quite similar to those in the marine Sr isotope record for the same time period, although their amplitudes differ owing to the differing residence times of Os and Sr in the ocean. Together, our results and previous data trace a continuous Os isotope record for ca. 50 Myr starting in Anisian time. We document the following six notable features in the Os record, which also appear in the Sr record, and their interpretation: (1) a negative (unradiogenic) shift associated with euxinia in the latest Anisian reflecting late-stage Siberian Traps eruptions, (2) wide fluctuations from the latest Anisian to Ladinian induced by volcanism and by the late Ladinian humid pulse and volcanism of the Italian Volcanic Center, (3) a continuous decrease in the early Carnian during eruptions of the Wrangellia large igneous province, (4) stable unradiogenic values from the early to early middle Norian associated with a prolonged arid period, (5) a negative spike in the middle Norian associated with the Manicouagan impact event, and (6) a broad rise and fall from the earliest late Norian to the Rhaetian ages, attributed to the Cimmerian-Indosinian orogeny and subsequent volcanism of the Central Atlantic Magmatic Province.

    DOI: 10.1016/j.jaesx.2018.100004

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  • Updated radiolarian zonation for the Jurassic in Japan and the western Pacific Reviewed

    Atsushi Matsuoka, Tsuyoshi Ito

    Science Reports of Niigata University (Geology)   ( 34 )   49 - 57   2019.3

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    Authorship:Lead author  

    File: 243_Matsuoka_Ito_2019_SRNU.pdf

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  • Radiolarian-based study on the fabric and the formation process of the Early Cretaceous melange near Zhongba, Yarlung-Tsangpo Suture Zone, southern Tibet Reviewed

    Xin Li, Atsushi Matsuoka, Yalin Li, Yushuai Wei, Chengshan Wang

    ISLAND ARC   28 ( 1 )   2019.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:WILEY  

    The Yarlung-Tsangpo Suture Zone (YTSZ), as the southernmost and youngest among the sutures that subdivides the Tibetan Plateau into several east-west trending blocks, marks where the Neo-Tethys was consumed as the Indian continent moved northward and collided against the Eurasian continent. Melanges in the YTSZ represent the remnants of the oceanic plate through subduction and collision. Melanges are characterized by a highly sheared volcanoclastic or siliceous mudstone matrix including blocks of chert, claystone, and basalt. Detailed radiolarian analyses are conducted on the melange near Zhongba County. Macroscopic, mesoscopic, and microscopic observations are combined in order to elucidate the relationships among age, lithology, and structure of blocks in the melange. Reconstructed ocean plate stratigraphy includes Lower Jurassic limestone within the chert sequence accumulated at a depth near the CCD (Unit 2), Upper Jurassic thin-bedded chert interbedded with claystone deposited in the wide ocean basin (Unit 3), and Lower Cretaceous chert with siliceous mudstone (Units 4 and 5), representing the middle parts of ocean plate stratigraphy. The results highlight the fabric of brecciated chert on mesoscopic scale, which is thought to be due to localized overpressure. The formation of mesoscopic and microscopic block-in-matrix fabrics in the melange is proposed for the chert and siliceous mudstone bearing different extents of consolidation and competence during the progressive deformation of accreted sediments at shallow-level subduction.

    DOI: 10.1111/iar.12282

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  • Zircon LA-ICP-MS U-Pb age of a tuff from the Akaiwa Formation of the Tetori Group in the Shiramine area, Ishikawa Prefecture, central Japan Reviewed

    Sakai Yusuke, Tsutsumi Yukiyasu, Kusuhashi Nao, Sonoda Teppei, Horie Kenji, Matsuoka Atsushi

    The Journal of the Geological Society of Japan   125 ( 3 )   255 - 260   2019

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Geological Society of Japan  

    <p>The Tetori Group in the Shiramine area (Ishikawa Prefecture, central Japan) is subdivided into the Gomijima, Kuwajima, Akaiwa, and Kitadani formations (from bottom to top). A variety of animal and plant fossils have been reported from the Kuwajima, Akaiwa, and Kitadani formations, but the depositional ages are still poorly constrained. We obtained the first reliable zircon U-Pb age from the Akaiwa Formation of the Tetori Group in the Shiramine area using laser ablation inductively coupled plasma mass spectrometry. The dated sample was taken from the lower part of the Akaiwa Formation along the Osugidani River (Shiramine area), and its U-Pb age is 121.2±1.1 Ma (95% confidence interval).</p>

    DOI: 10.5575/geosoc.2018.0062

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  • Land-Ocean Linkage: Pelagic Cherts in Mesozoic Neritic-Terrestrial Sequences in East Asia Reviewed

    Atsushi Matsuoka, Tsuyoshi Ito, Yusuke Sakai

    Open Journal of Geology   09 ( 10 )   551 - 553   2019

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Publisher:Scientific Research Publishing, Inc.  

    DOI: 10.4236/ojg.2019.910039

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  • Mesozoic radiolarian biochronology - current status and future directions Reviewed

    Spela Gorican, Luis O'Dogherty, Peter O. Baumgartner, Elizabeth S. Carter, Atsushi Matsuoka

    REVUE DE MICROPALEONTOLOGIE   61 ( 3-4 )   165 - 189   2018.12

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    Language:English   Publisher:ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER  

    Mesozoic radiolarian biochronologic scales have been developed since the 1970s and most of them reached their present day status in the1990s. The degree of temporal resolution, on average, corresponds to substage level and is sufficient to provide a meaningful framework for general geological studies. The great majority of zonal schemes were elaborated in low-latitude sections but are applicable in high latitudes as well because an adequate number of species occur worldwide. This paper presents a short historical review and a synthesis of currently used zonations developed in North America, Europe and Asia. The advantages and the shortcomings of the existing zonations are discussed. As a general rule, the zonations including a high number of taxa in each zone have a much greater applicability for global correlations than those defined exclusively with marker taxa. In the forthcoming years, particular studies will focus on zonal division of under-explored time intervals and on improved calibration to chronostratigraphy. Two joint objectives for future research are briefly introduced. The first objective, achievable in a relatively short time, is to compile a composite Mesozoic zonation that would provide a single reference standard for radiolarian dating at a global scale. The second objective is to refine the radiolarian zonal schemes, which, in certain intervals, have already attained the resolution comparable to that of the standard ammonite zones. To increase the degree of precision and accuracy to this level through the entire Mesozoic is a long-term goal that requires additional high-resolution sampling and emphasis on detailed documentation of evolutionary first and last appearances in different phylogenetic lineages. (C) 2018 Elsevier Masson SAS. All rights reserved.

    DOI: 10.1016/j.revmic.2018.08.001

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  • Morphological characteristics of a dimorphic pair of <i>Albaillella sinuata</i> Ishiga and Watase: Dimorphism in the lineage of the Permian Albaillellaria (Radiolaria) . Reviewed

    Ito, T, Matsuoka, A, Feng, Q

    Island Arc   e12271   2018.7

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  • Lithology and radiolarian age of the Ryokami-yama Chert Formation in eastern Mt. Ryokami: Possible décollement zone in Permian pelagic sequence in mid-Mesozoic accretionary complexes of Southwest Japan. Reviewed

    Ito, T, Matsuoka, A

    Island Arc   e12273   2018.7

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    DOI: 10.1111/iar.12273

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  • Stratigraphy of the Lower Cretaceous Tetori Group and stratigraphic implication of plant assemblages in the border area between Ishikawa and Fukui Prefectures, central Japan Reviewed

    124 ( 3 )   171 - 189   2018.3

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    DOI: 10.5575/geosoc.2017.0074

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  • Paleocene Radiolarian Faunas in the Deep-Marine Sediments Near Zhongba County, southern Tibet Reviewed

    Xin Li, Yalin Li, Chengshan Wang, Atsushi Matsuoka

    Paleontological Research   22 ( 1 )   37 - 56   2018.1

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    An upper Paleocene radiolarian-bearing succession (ZN1) located in the southern part of the north subzone of the Tethyan Himalaya is composed of siliceous siltstones and claystones. In this paper, 23 species belonging to 13 genera are reported. Three new species, Lychnocanium? pyramis Li and Matsuoka sp. nov., Lychnocanium? stypticum Li and Matsuoka sp. nov., and Pterocyrtidium sinense Li and Matsuoka sp. nov., are described. Radiolarian assemblages from this succession can be compared with the Bekoma campechensis Zone (RP6), indicating a time interval of 61.5-58.23 Ma, i.e., late Paleocene. The radiolarian assemblages from the Yamdrok mélange, the Zheba section, and the Jiazhu section indicate that they are of the same age as those from the Zhinadibu 1 section. The lack of calcareous and coarse-grained terrestrial materials in the ZN1 section proves that the strata of this section were deposited in a relatively deep marine environment below the calcium carbonate compensation depth (CCD) and more distal to the continents during the late Paleocene. Coeval deepwater sediments near Saga were accumulated near the CCD.

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  • 日本海の放散虫-進化の謎を解き明かす日本海と放散虫の関係

    松岡 篤

    生物の科学 遺伝   72 ( 1 )   30 - 35   2018.1

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  • Guiuva sashidai n. gen. n. sp., a probable colonial radiolaria from the Lopingian (Upper Permian) in South China Reviewed

    Tsuyoshi Ito, Lei Zhang, Mu-Hui Zhang, Qing-Lai Feng, Atsushi Matsuoka

    PALAEOWORLD   26 ( 4 )   631 - 637   2017.12

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    Guiuva sashidai Ito and Feng n. gen. n. sp., characterized by bunchy aggregations comprising combined small spherical shells with porous surfaces, was discovered from the Lopingian (Upper Permian) of the Yutouling section in the Xiaodong area, Guangxi Zhuang Autonomous Region, South China. The morphological similarities with recent radiolarians and formation of the aggregations imply that this species is a colonial radiolaria. This species is ca. 200 myr older than previously-reported occurrences of colonial radiolarians from the Eocene. It is believed that colonial radiolarians live exclusively in association with symbiotic algae, based on previous observations of the extant forms. Therefore, it is plausible to suggest that G. sashidai had symbionts, which would indicate that the origin of symbiont-bearing radiolarians dates back at least to the Permian. On this basis, we suggest that this is the oldest known example of symbiont-bearing radiolarians. (C) 2017 Elsevier Ireland Ltd Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. Published by Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.palwor.2017.04.001

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  • Permian–Cretaceous radiolarians from Ie Island, Okinawa Prefecture, Japan. Reviewed

    Ito, T, Matsuoka, A

    Science Reports of Niigata University (Geology)   32 ( Supplement )   125 - 136   2017.10

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  • Excursion guide to the radiolarians of the East China Sea near Sesoko Island, Okinawa, Japan: An important research station for living radiolarian studies. Reviewed

    Matsuoka, A, Suzuki, N, Ito, T, Kimoto, K, Tuji, A, Ichinohe, R, Li, X

    Science Reports of Niigata University (Geology)   32 ( Supplement )   103 - 123   2017.10

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  • Outline and history of the Itoigawa UNESCO Global Geopark in Niigata Prefecture in central Japan, with radiolarian occurrences in Itoigawa. Reviewed

    Ito, T, Ibaraki, Y, Matsuoka, A

    Science Reports of Niigata University (Geology)   32 ( Supplement )   71 - 90   2017.10

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  • An aberrant bi-apical Follicucullus (Albaillellaria) from the late Guadalupian (Middle Permian), with the possible oldest evidence of double malformation in radiolarians Reviewed

    Tsuyoshi Ito, Yusuke Kitagawa, Atsushi Matsuoka

    JOURNAL OF MICROPALAEONTOLOGY   36 ( 2 )   222 - 223   2017.7

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    An aberrant bi-apical Follicucullus specimen (Albaillellaria, Radiolaria) has been discovered from an upper Guadalupian (Middle Permian) chert block of the Kamiaso Unit of the Mino terrane, central Japan. If this specimen was formed with double malformation, it would be the oldest record of this phenomenon in radiolarians and the first record of its kind in Albaillellaria.

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  • Campanian-Maastrichtian palynomorph from the Sifangtai and Mingshui formations, Songliao Basin, Northeast China: Biostratigraphy and paleoflora Reviewed

    Kohei Yoshino, Xiao-Qiao Wan, Dang-Peng Xi, Wei Li, Atsushi Matsuoka

    PALAEOWORLD   26 ( 2 )   352 - 368   2017.6

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    We recovered a Campanian-Maastrichtian palynological record in transitional succession from the Sifangtai to Mingshui formations of the Songke Core-1 (North) (SK1 (N)) in the Songliao Basin, Northeast China. These formations are composed mainly of various colored mudstones and sandstones. The lithofacies variation suggests that the paleoenvironment changed from flood plain to lake. Most of the palynomorph assemblages are dominated by gymnosperm pollen, followed by spore of pteridophyte, and angiosperm pollen. On the basis of the first occurrences of marker genera within the succession, we identified four palynomorph interval zones (in ascending order): the Jianghanpollis, Chenopodipollis, Toroisporis, and Betulaceoipollenites interval zones. The first two interval zones are found from flood plain and levee deposits. The third one is recognized from lake basin plain-lake basin slope deposits. The last one is found in delta deposits within lakeshore. We consider that environmental changes are the major factors that formed component of Campanian-Maastrichtian assemblage in the Songliao Basin. In addition, the Jianghanpollis and Chenopodipollis interval zones are assigned to the Campanian, whereas the Toroisporis and Betulaceoipollenites interval zones date as the Maastrichtian. Thus, the Chenopodipollis/Toroisporis zonal boundary approximates the C/M boundary. Triprojectate pollen such as Aquilapollenitesis regarded as marker taxa in the study section and other areas within the Aquilapollenites Province during the Campanian-Maastrichtian. However, Wodehouseia spp. have yet been confirmed within the study section, although this genus has appeared in Campanian-Maastrichtian deposits in other areas. This is one of the important clues to understand regional difference of local flora in these ages. (C) 2016 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved.

    DOI: 10.1016/j.palwor.2016.10.001

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  • Catalogue of living polycystine radiolarians in surface waters in the East China Sea around Sesoko Island, Okinawa Prefecture, Japan Reviewed

    Matsuoka, A

    Science Reports of Niigata University (Geology)   32   57 - 90   2017.3

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  • SEM morphological study of calm shrimp <i>Diestheria</i> (spinicaudatan) of the Jehol Biota of China. Reviewed

    Li, Y, Teng, X, Matsuoka, A, Li, G

    Science Reports of Niigata University (Geology)   32   15 - 23   2017.3

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  • Late Silurian radiolarians from a siliceous rock pebble within a conglomerate, Kotaki, Itoigawa, Niigata Prefecture, central Japan. Reviewed

    Ito, T, Kurihara, T, Hakoiwa, H, Ibaraki, Y, Matsuoka, A

    Science Reports of Niigata University (Geology)   32   1 - 14   2017.3

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  • Phyletic evolution of the mid-Cretaceous radiolarian genus Turbocapsula from southern Tibet and its applications in zonation Reviewed

    Xin Li, Atsushi Matsuoka, Yalin Li, Chengshan Wang

    MARINE MICROPALEONTOLOGY   130   29 - 42   2017.1

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    A radiolarian biostratigraphic study ranging from the latest Barremian to the Aptian of a pelagic sequence (section BB1) near Babazhadong in southern Tibet revealed phyletic relationships of species belonging to the genus Turbocapsula. Three species and two subspecies are included in this genus: Turbocapsula tetras LI & MATSUOKA, n. sp., T. fugitiva O'DOGHERTY, and T. costata (T. costata (WU) multicostata LI & MATSUOKA, n. ssp. and T. costata (WU) costata). Turbocapsula fugitive appears to have arisen from T. tetras by losing the septa between the third and the fourth segments. Turbocapsula fugitiva seems to have given rise to T. costata multicostata following the development of thicker costae between its two to five rows of pores. With the decrease in the number of the costae and the development in the costae, T. costata multicostata evolved into T. costata costata. The phyletic evolution of the genus Turbocapsula has a high stratigraphic value. Based on the phyletic evolution of Aurisaturnalis and Turbocapsula, two radiolarian zones have been defined: the Aurisaturnalis carinatus Zone and the Turbocapsula costata Zone. These zones are defined by evolutionary first appearance bio-horizons (EFABs), which are more reliable than the first and the last occurrence bio-horizons over wide areas. The Turbocapsula costata Zone is subdivided into the Turbocapsula costata multicostata Subzone and the Turbocapsula costata costata Subzone. Based on comparisons with radiolarian biostratigraphic research conducted in other areas, in which age-diagnostic calcareous nannofossils and planktonic foraminifera occur alongside radiolarians, the Aurisaturnalis carinatus Zone and the Turbocapsula costata Zone are assigned to the Lower Hauterivian-Lower Aptian and the Lower Aptian-Lower Albian, respectively. This newly proposed zonation is useful for comparing the stratigraphic relationships of Turbocapsula-bearing horizons in other areas. A zonal scheme like this scheme can be used for identifying certain episodes such as mid-Cretaceous oceanic anoxic events (OAEs) in the pelagic realms. The Early Aptian OAE la is located between the first appearance bio-horizon of the genus Turbocapsula and the EFAB of T. costata multicostata. (C) 2016 Elsevier B.V. All rights reserved.

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  • 新潟県糸魚川地域の小滝川流域の来馬層群から産出したジュラ紀汽水生二枚貝化石 Reviewed

    茨木洋介, 坂田凌輔, 箱岩寛晶, 鹿澤優祐, 伊藤 剛, 酒井佑輔, Li Xin, 小松昭美, 北川祐介, 松岡 篤

    糸魚川市博物館研究報告   ( 4 )   51 - 61   2017

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  • REVIEW OF MICROFOSSIL-BEARING CLASTS WITHIN LATE MESOZOIC STRATA IN EAST ASIA: STAGED DENUDATION OF MID-MESOZOIC ACCRETIONARY COMPLEXES Reviewed

    Tsuyoshi Ito, Yusuke Sakai, Qinglai Feng, Atsushi Matsuoka

    OFIOLITI   42 ( 1 )   39 - 53   2017

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    Late Mesozoic neritic-continental strata of East Asia show intercalations of conglomerates including microfossil-bearing clasts. Some clasts are presumed to have originated in mid-Mesozoic accretionary complexes (ACs) of East Asia. Microfossils (e.g., radiolaria, conodonts) in these clasts can provide age constraints. Relationships between rock facies and age in sequences of the mid-Mesozoic ACs have been clarified in previous studies; therefore, the rock facies and the age of the clasts offer a clue about denudation history and provenance of the mid-Mesozoic ACs. This study compiles previous studies of microfossil-bearing clasts within the Late Mesozoic in the Outer and Inner zones of Southwest Japan and in the Gyeongsang Supergroup in the southeastern Korean Peninsula.
    The compilation, at present, recognizes three denudation stages (Stages A, B, and C) of the mid-Mesozoic ACs. Stage A (Oxfordian-Hauterivian) is characterized by an initial and narrow denudation. The denudation of the mid-Mesozoic ACs started at some point in this stage, but it was of limited extent. Stage B (Barremian-early Albian) is characterized by wide denudation: the mid-Mesozoic ACs became largely exposed. Afterwards, some younger geologic bodies of the mid-Mesozoic ACs, which were structurally underlying, were exposed and denuded. Stage C (late Albian-) is characterized by denudation of almost all the mid-Mesozoic ACs. This denudational evolution might be related to some tectonic and igneous events in East Asia, such as the uplift of the Tetori Group in the late Hauterivian-early Barremian and the initiation of the granitic magmatic activity in the middle Albian.

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  • 新潟県小滝地域における県内最古の化石発見:糸魚川市・新潟大学・産業技術総合研究所の共同研究報告 Reviewed

    伊藤 剛, 栗原敏行, 箱岩寛晶, 茨木洋介, 松岡 篤

    糸魚川市博物館研究報告   ( 4 )   23 - 31   2017

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  • A New subspecies of <i>Pseudoalbaillella Globosa</i>(Middle Permian radiolaria) and its morphological variation. Reviewed

    Ito, T, Feng, Q, Matsuoka, A

    微体古生物学報   33 ( 4 )   33   2016.12

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  • Uneven Distribution of Pseudotormentus De Wever et Caridroit (Radiolaria, Protozoa): Provincialism of a Permian Planktonic Microorganism Reviewed

    Tsuyoshi Ito, Feng Qinglai, Atsushi Matsuoka

    ACTA GEOLOGICA SINICA-ENGLISH EDITION   90 ( 5 )   1598 - 1610   2016.10

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    The Permian planktonic distribution is not well known, in contrast to other fossil distributions of nekton and benthos. Radiolaria are representative microfossils of plankton in the Permian palaeocean. This study compares both correlated radiolarian occurrences (Pseudotormentus De Wever et Caridroit and Quadriremis Nazarov et Ormiston) in literature data from the Pacific Rim and quantitative data from the Liuhuang and Gujingling sections in South China. Pseudotormentus distributions are concentrated in the Panthalassa, whereas Quadriremis occurrences are distributed over both the Panthalassa and the Palaeotethys. The uneven distribution of Pseudotormentus seems to have been controlled by a difference in the oceanic basins, indicating the presence of faunal differences in Permian planktonic microorganisms between the Panthalassa and the Palaeotethys. In other words, this study infers the provincialism of Permian planktonic microorganisms. The uneven distribution is explainable by a hypothesis that Pseudotormentus was strongly affected by a Panthalassan equatorial current.

    DOI: 10.1111/1755-6724.12804

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  • Bolide impact triggered the Late Triassic extinction event in equatorial Panthalassa Reviewed

    Tetsuji Onoue, Honami Sato, Daisuke Yamashita, Minoru Ikehara, Kazutaka Yasukawa, Koichiro Fujinaga, Yasuhiro Kato, Atsushi Matsuoka

    SCIENTIFIC REPORTS   6   29609   2016.7

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    Extinctions within major pelagic groups (e.g., radiolarians and conodonts) occurred in a stepwise fashion during the last 15 Myr of the Triassic. Although a marked decline in the diversity of pelagic faunas began at the end of the middle Norian, the cause of the middle Norian extinction is uncertain. Here we show a possible link between the end-middle Norian radiolarian extinction and a bolide impact. Two palaeoenvironmental events occurred during the initial phase of the radiolarian extinction interval: (1) a post-impact shutdown of primary and biogenic silica production within a time span of 104-105 yr, and (2) a sustained reduction in the sinking flux of radiolarian silica for similar to 0.3 Myr after the impact. The catastrophic collapse of the pelagic ecosystem at this time was probably the dominant factor responsible for the end-middle Norian conodont extinction.

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  • Mode of occurrence and taphonomy of the heteromorph ammonite Pravitoceras sigmoidale Yabe from the Upper Cretaceous Izumi Group, Japan Reviewed

    Kohei Yoshino, Atsushi Matsuoka

    CRETACEOUS RESEARCH   62   74 - 85   2016.7

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    The heteromorph ammonite Pravitoceras sigmoidale Yabe, of the family Nostoceratidae, is the zonal marker of the upper Campanian P. sigmoidale Zone in southwest Japan, and is the main component of ammonite assemblages in this zone. We explain the taphonomic processes underlying the occurrence of P. sigmoidale in the Izumi Group, specifically in the Minato (Awaji Island), Anaga (Awaji Island), Koike -Omoizaki (Shikoku), and Hidonodani sections (Shikoku). The first two sections consist mainly of the non-turbiditic Northern Marginal Facies (NMF), while the latter two sections comprise the Main Fades (MF), a turbiditic facies deposited in waters deeper than those of the NMF. We recognise three modes of occurrence of P. sigmoidale, as follows: (1) In nodules crowded with P. sigmoidale (NCP); this mode occurs only in the NMF, and includes juvenile and adult specimens, together with other ammonites such as Solenoceras (Oxybeloceras) aff. humei (Douville), (2) In mudstone with isolated P. sigmoidale (MIP), which is found in all of the sections studied, (3) In sandstone with isolated P. sigmoidale (SIP), which occurs only in the MF. Adult individuals of P. sigmoidale are dominant in most of the sections, while juveniles were observed only in the Minato section, which originally was closer to land areas. The number of specimens of P. sigmoidale and Solenoceras spp. tends to increase in sections representing depositional environments proximal to terrestrial areas. Ammonite assemblages could have been transported from shallow- to deep-water settings by turbidity currents. The sorting of components by transport processes likely contributed to the formation of these fossil assemblages in different areas. This is an important clue to understanding the habitat of heteromorph ammonite life assemblages consisting mainly of P. sigmoidale. (C) 2016 Elsevier Ltd. All rights reserved.

    DOI: 10.1016/j.cretres.2016.02.003

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  • 岐阜県美濃テレーン上麻生ユニットの礫岩に含まれるチャート岩体から産出したペルム紀放散虫化石 Reviewed

    伊藤 剛, 北川祐介, 松岡 篤

    地質学雑誌   122 ( 6 )   249 - 259   2016.6

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    DOI: 10.5575/geosoc.2016.0013

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  • SEM morphological study of clam shrimp <i>Ganestheria </i>(spinicaudatan) from Upper Cretaceous of Jiangxi, southeastern China. Reviewed

    Li, G, Teng, X, Matsuoka, A

    Science Reports of Niigata University (Geology)   31   69 - 74   2016.3

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  • <i>Nestoria sikeshuensis</i> (Spinicaudata), a new clam shrimp species from the Tugulu Group in Junggar Basin, northwestern China. Reviewed

    Teng, X, Xiao, J, Zhang, Y, Matsuoka, A, Li, G

    Science Reports of Niigata University (Geology)   31   75 - 81   2016.3

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  • Possible Boundaries between <i>Pseudoalbaillella</i> and <i>Follicucullus</i> (Follicucullidae, Albaillellaria, Radiolaria): An Example of Morphological Information from Fossils and Its Use in Taxonomy. Reviewed

    Ito, T, Feng, Q, Matsuoka, A

    Forma   31   7 - 10   2016

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    DOI: 10.5047/forma.2016.002

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  • Siliceous sponge spicules from the Permian Gufeng Formation in Wuhan, Hubei Province, China Reviewed

    Ito, T, Matsuoka, A, Feng, Q

    News of Osaka Micropaleontologists (NOM), Special Volume   16   105 - 111   2016

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  • Middle Jurassic to Early Cretaceous radiolarian assemblages from the chert blocks in the mélange along the Yarlung–Tsangpo Suture Zone, near Zhongba County, Southern Tibet. Reviewed

    Li, X, Matsuoka, A, Li, Y, Wei, Y, Wang, C

    News of Osaka Micropaleontologists (NOM), Special Volume   16   79 - 94   2016

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  • Ductilely deformed cherts within intrusive sandstones of the Yoshii Group of the Akiyoshi terrane in Southwest Japan: Consolidation time of Permian cherts Reviewed

    Ito, T, Matsuoka, A

    News of Osaka Micropaleontologists (NOM), Special Volume   16   95 - 104   2016

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  • Growth models on siliceous skeletons of living Spumellaria (Radiolaria)

    HORI S. Rie, SHINKI Takenobu, IWAKIRI Akihiro, Matsuoka Atsushi, SUZUKI Noritoshi, OGANE Kaoru, Tsuji Akihiro

    Annual Meeting of the Geological Society of Japan   2016 ( 0 )   276 - 276   2016

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    DOI: 10.14863/geosocabst.2016.0_276

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  • Swollen type of <i>Albaillella sinuata</i> lshiga and Watase (Permian radiolaria) from a chert boulder in le-jima Island, Okinawa Prefecture, Japan Reviewed

    Ito T, Matsuoka A

    News of Osaka Micropaleontologists   Special Volume ( 15 )   207 - 217   2015.6

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    File: 204_Ito_Matsuoka_2015_NOM15.pdf

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  • 多面体幾何学の放散虫骨格構造への応用 Reviewed

    吉野 隆, 松岡 篤, 岸本直子, 栗原敏之, 石田直人, 木元克典, 松浦 執

    大阪微化石研究会誌   特別号 ( 15 )   1 - 9   2015.6

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  • 和泉層群の<i>Pravitoceras sigmoigale</i>帯(上部Campanian階)から産する放散虫 Reviewed

    吉野恒平, 松岡 篤

    大阪微化石研究会誌   ( 特別号15 )   169 - 179   2015.6

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  • Imbricate structure of the Permian Yoshii Group in the Otakeyama area, Okayama Prefecture, southwest Japan Reviewed

    Tsuyoshi Ito, Atsushi Matsuoka

    FRONTIERS OF EARTH SCIENCE   9 ( 1 )   152 - 163   2015.3

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    The Yoshii Group of the Akiyoshi terrane is distributed over the Otakeyama area, Okayama Prefecture, southwest Japan. The Yoshii Group is composed of siliceous rocks and clastics, comprising chert-clastic sequences. The Yoshii Group is divided into four structural units (Units Ot 1, Ot 2, Ot 3, and Ot 4) in structurally ascending order. Lithological similarities and radiolarian age suggest that these units exhibit almost identical ocean plate stratigraphy. These units are structurally-repeated to form an imbricate structure. This structure was possibly formed by off-scrape accretion at a toe of an accretionary complex. Additionally, a review of previous studies indicates that an imbricate structure is common in the Akiyoshi terrane. The presence of an imbricate structure in the Akiyoshi terrane, Permian accretionary complex, indicates the possibility that a specific horizon of Permian pelagic sequences acted as a d,collement zone.

    DOI: 10.1007/s11707-014-0443-x

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  • Searching for a non-marine Jurassic/Cretaceous boundary in northeastern China Reviewed

    Li G, Matsuoka A

    The Journal of the Geological Society of Japan   121 ( 3 )   109 - 122   2015.3

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    DOI: 10.5575/geosoc.2015.0001

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  • Ten years'achievements of the Topic Session "The Jurassic +" and activities of the International Subcommission on Jurassic Stratigraphy Reviewed

    Matsuoka, A

    Jour. Geol. Soc. Japan   121 ( 2 )   39 - 44   2015.2

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  • Polyhedron geometry of skeletons of Mesozoic radiolarian Pantanellium Reviewed

    Takashi Yoshino, Atsushi Matsuoka, Toshiyuki Kurihara, Naoto Ishida, Naoko Kishimoto, Katsunori Kimoto, Shu Matsuura

    Revue de Micropaleontologie   58 ( 1 )   51 - 56   2015.1

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    We considered the geometrical properties of skeletons of the genus Pantanellium, a type of Mesozoic radiolarian. We constructed four 3D models of fossil specimens of Pantanellium, using X-ray Micro-CT and layered manufacturing technology. Focusing on cortical shells, we approximated the skeletal structures with convex polyhedrons and investigated their geometrical properties. We summarized these properties using planar graphs. The geometrical properties differ for fossils that are believed to belong to the same species. The results of numerical simulations based on a mathematical model for spherical radiolarians were partially consistent with the skeletal structures of the specimens. We conclude that the skeletal structure of the genus Pantanellium is not fixed and is not completely optimized from the viewpoint of symmetry.

    DOI: 10.1016/j.revmic.2015.01.002

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  • Taxonomic significance of short forms of middle Permian Pseudoalbaillella Holdsworth and Jones, 1980 (Follicucullidae, Radiolaria) Reviewed

    Tsuyoshi Ito, Qinglai Feng, Atsushi Matsuoka

    Revue de Micropaleontologie   58 ( 1 )   3 - 12   2015.1

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    Middle Permian Pseudoalbaillella from the Xiaodong area in South China were studied using fossil morphology. Short forms of Pseudoalbaillella fusiformis (Holdsworth and Jones), Pseudoalbaillella internata Wang, and Pseudoalbaillella monacantha (Ishiga and Imoto), characterized by a short and skirt-like pseudoabdomen, were confirmed. We conclude that the short forms were derived from their respective species by breaking off during disruptive processes. If this is true, there may be structurally weakened parts in the pseudoabdomen.

    DOI: 10.1016/j.revmic.2014.05.003

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  • Foraminifera: the small giant in the ocean

    Fang P, Willems H, Matsuoka A, Li G

    Chinese Journal of Nature   37 ( 2 )   103 - 107   2015

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  • Jurassic-cretaceous boundary strata of the Somanakamura Group in NE Japan and their correlation with coeval terrestrial deposits in China Reviewed

    Li Wei, Xiaoqiao Wan, Atsushi Matsuoka, Shuqin Zhang, Haiying Qu, Tsubasa Tamura, Kohei Yoshino

    Acta Geologica Sinica   89 ( 1 )   285 - 299   2015

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    Abstract: Defining the Jurassic-Cretaceous boundary is a controversy in stratigraphic study of the world. It has been widely accepted that this boundary can be defined at the bottom of Berriasian in Tethys, with the appearance of the ammonite Berriasella jacobi dating to ca. 145 Ma. However, it is difficult for the widespread terrestrial deposits in China to correlate with the international standard of marine facies. The Somanakamura Group in Japan is represented by a succession of marine-continental transitional strata. It provides a bridge of marine and nonmarine stratigraphic correlation. The ammonite and radiolarian fossils preserved in this group suggest an age from Bajocian to early Valanginian. The J-K boundary was defined in or atop the Tomizawa Formation of the group according to the ammonite data. The present authors study the fossil spores and pollen newly found from the Tomizawa and Koyamada formations. Three assemblages have been recognized. They are Assemblage 1 (Cyathidites-Classopollis) from the upper part of the Tomizawa Formation, Assemblage 2 (Cyathidites-Jiaohepollis) from the lower part of the Koyamada Formation, and Assemblage 3 (Cyathidites-Spheripollenites-Ephedripites) from the middle to upper part of the Koyamada Formation. With the reference of ammonite evidence, the J-K boundary can be defined between Assemblage 1 and Assemblage 2. This palynological J-K boundary can be correlated with that of terrestrial sequence in China. However, local biostratigraphy imply that the continental J-K boundary in China is of 135 or 137 Ma age. It has a considerable discrepancy from the marine standard. Biogeographically, the distribution pattern of spores and pollen in southern China is in accordance with that in the Somanakamura Group, which parallels the Tuchengzi Formation in northeastern China. By the palynological correlation between the Somanakamura Group and the strata in southern China, and then with the sequence in northeastern China, it is suggested that the continental J-K boundary is located in the Tuchengzi Formation.

    DOI: 10.1111/1755-6724.12411

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  • SEM morphological study of the clam shrimp type specimens of Eosestheria sihetunensis from the Lower Cretaceous Yixian Formation in western Liaoning, northeastern China. Reviewed

    Li G, Matsuoka A, Willems H

    Science Reports of Niigata University, Series E (Geology)   ( 30 )   27 - 37   2015

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  • Middle Jurassic radiolarians from chert clasts within conglomerates of the Itsuki Formation of the Itoshiro Subgroup (Tetori Group) in the Taniyamadani valley, Fukui Prefecture, central Japan. Reviewed

    Ito T, Sakai Y, Feng Q, Matsuoka A

    Science Reports of Niigata University, Series E (Geology)   ( 30 )   1 - 13   2015

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  • Three-dimensional imaging of the Jurassic radiolarian <i>Protunuma? ochiensis</i> Matsuoka: an experimental study using high-resolution X-ray micro-computed tomography. Reviewed

    Ishida N, Kishimoto N, Matsuoka A, Kimoto K, Kurihara T, Yoshino T

    Volumina Jurassica   13 ( 1 )   77 - 82   2015

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  • Middle Jurassic radiolarians from a siliceous mudstone clast within conglomerate of the Tetori Group in the Itoigawa area, Niigata Prefecture, central Japan.

    Ito, T, Sakai. Y, Ibaraki. Y, Matsuoka, A

    ( 29 )   1 - 11   2014.3

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  • Bathonian/Callovian (Middle Jurassic) ammonite biostratigraphy of the Kaizara Formation of the Tetori Group in central Japan Reviewed

    Naoto Handa, Kentaro Nakada, Junko Anso, Atsushi Matsuoka

    NEWSLETTERS ON STRATIGRAPHY   47 ( 3 )   283 - 297   2014

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    The definition of the Global Boundary Stratotype Section and Point (GSSP) of the Bathonian/Callovian (Middle Jurassic) boundary is under debate in Europe. The sections that include the Bathonian/Callovian boundary are still limited in East Asia. In Japan, the Middle Jurassic Kaizara Formation, which is located within the Tetori Group, is exposed in Fukui Prefecture, central Japan. This formation contains abundant ammonite fossils. On the basis of ammonite fossils, the Kaizara Formation has been assigned to the late Bathonian to early Callovian age. Therefore, the Kaizara Formation is an important formation encompassing the Bathonian/Callovian boundary in East Asia. However, the fossil-bearing horizons have not been observed clearly in previous studies. In the present study, a detailed analysis of the molluscan fossil-bearing horizons of the Kaizara Formation was conducted utilizing three stratigraphic successions. On the basis of seven identified genera and nine species of ammonites, the presence of three successive assemblage zones first proposed by a previous study is confirmed: the Pseudoneuqueniceras yokoyamai, the Kepplerites japonicus, and the Oxycerites assemblage zones. Of these, the Pseudoneuqueniceras yokoyamai Assemblage Zone was assumed to correspond to the Orbis - Oppeli Zone (late Bathonian), and the Kepplerites assemblage Zone was assumed to be comparable to the early Callovian age. These results indicate that the Bathonian/Callovian boundary lies within the middle part of the Kaizara Formation.

    DOI: 10.1127/0078-0421/2014/0048

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  • Pores in Spherical Radiolarian Skeletons Directly Determined from Three-Dimensional Data.

    Yoshino T, Kishimoto N, Matsuoka A, Ishida N, Kurihara T, Kimoto K

    FORMA   29   21 - 27   2014

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  • Evolutionary patterns and palaeobiogeography of Pliensbachian and Toarcian (Early Jurassic) Radiolaria Reviewed

    Spela Gorican, Elizabeth S. Carter, Jean Guex, Luis O'Dogherty, Patrick De Weyer, Paulian Dumitrica, Rie S. Hon, Atsushi Matsuoka, Patricia A. Whalen

    PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY   386   620 - 636   2013.9

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    Recent studies on the global distribution of Pliensbachian and Toarcian polycystine radiolarians allowed us to examine faunal turnovers and the biogeography through this critical time interval around a major ecologic and biotic crisis. The analysis is based on the distribution of 167 species belonging to 69 genera. Significant variations in the ratio between the number of originating and extinct species have been recognized. During the early Early Pliensbachian FADs greatly exceeded LADs and the maximum diversity was reached in the late Early Pliensbachian. The trend then reversed with the number of LADs exceeding FADs throughout the Late Pliensbachian and Early Toarcian (extinction interval). Recovery started in the Middle and Late Toarcian, when the number of FADs again surpassed the number of LADs.
    Three differing evolutionary patterns are observed amongst radiolarian genera through the studied time interval. The largest group diversified rapidly in the Early Pliensbachian and experienced higher extinction rates in the Late Pliensbachian and Early Toarcian; a second group exhibited no major changes; and a third group of mainly spongy spumellarians was successful during the extinction interval. The overall trend of radiolarian diversity is in a fairly good agreement with that of other marine faunas (ammonites and also benthos), but shows an inverse correlation with diversity trends of phytoplankton.
    Correlation with concomitant environmental changes indicates that radiolarian radiation/extinction rates were not consistently linked with temperature fluctuations or sea-level changes. It is also evident that the diversity decrease started well before the Early Toarcian negative delta C-13 peak and the Oceanic Anoxic Event (OAE). The extinction interval corresponds well to the duration of a short-term anomaly in the strontium-isotope record, including the rapid decrease of Sr-87/Sr-86 values in the Late Pliensbachian as well as the rapid increase in the Early Toarcian. This coincidence supports the hypothesis that the predominance of extinctions over originations was caused by a series of climate and environmental changes related to intensified magmatic activity.
    Some distinct biogeographic differences have been observed. Generic differences are most strongly displayed by the presence or absence of a particular genus or by changes in abundance while species differences range from greater variability to having completely different species in separate palaeolatitudinal realms. Two groups of genera are distinguished: those that are common to abundant in the Tethys (low latitudes) and rare to absent in mid to high latitudes, and those common to abundant in mid to high latitudes and rare to absent in the Tethys. (C) 2013 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.palaeo.2013.06.028

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  • Guadalupian (Middle Permian) Radiolarian and Sponge Spicule Faunas from the Bancheng Formation of the Qinzhou Allochthon, South China Reviewed

    Ito Tsuyoshi, Lei Zhang, Qinglai Feng, Matsuoka Atsushi

    JOURNAL OF EARTH SCIENCE   24 ( 2 )   145 - 156   2013.4

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    The Gujingling Section in Xiaodong, Guangxi Zhuang Autonomous Region, China, consists of cherts and siliceous siltstones, which belongs to the Bancheng Formation of the Qinzhou allochthon. Three successive radiolarian assemblage-zones related to the Guadalupian (Middle Permian) appear in the section in the following ascending order: Pseudoalbaillella sp. aff. Pseudoalbaillella longicornis-Pseudoalbaillella fusiformis, Follicucullus monacanthus, and Follicucullus scholasticus-Follicucullus porrectus. The radiolarian content in this section is generally greater than that of sponge spicules. The radiolarian fauna commonly consists of abundant Albanlellaria and spherical radiolaria with minor Latentifistularia and Entactinaria. The sponge fauna is composed mainly of hexactinellids with minor demosponges. These siliceous fossil faunal features, comparable with those in a deep basin of the western belt of the Phosphoria Basin in the western United States, indicate that the Bancheng Formation in the Gujingling Section was deposited in a basin deeper than 1 000 m. The siliceous siltstones in the section are characterized by inclusion of silt-sized quartz and no inclusion of sand-sized materials, suggesting that the Gujingling Section was located at least a few hundred kilometers from the South China Block in the Guadalupian.

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  • Revision of clam shrimp (“conchostracan”) genus Tylestheria from Late Cretaceous deposits of China "jointly worked" Reviewed

    Li, G, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   28   51 - 63   2013.3

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  • Late Jurassic radiolarians from the Zhongba melange in the Yarlung-Tsangpo suture zone, southern Tibet. "jointly worked" Reviewed

    Li, X, Li, Y, Wang, C, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   28   23 - 30   2013.3

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  • Radiolarian faunal change in the Middle Permian Gufeng Formation in the Liuhuang section, Chaohu, South China "jointly worked" Reviewed

    Ito, T, Feng, Q, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   28   39 - 49   2013.3

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  • Application of Voronoi Tessellation of Spherical Surface to Geometrical Models of Skeleton Forms of Spherical Radiolaria. "jointly worked" Reviewed

    Yoshino, T, Matsuoka, A, Kurihara, T, Ishida, N, Kishimoto, N, Kimoto, K, Matsuura, S

    FORMA   27   45 - 53   2012.12

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  • Fossil ostracode assemblages in the Middle Pleistocene upper part of the Sawane Formation on Sado Island, Niigata Prefecture, central Japan and surface water freshening of the Sae of Japan. "jointly worked" Reviewed

    Ishida, K. Yoshida, Matsuoka, A.

    Jour. Geol. Soc. Japan   118 ( 8 )   476 - 492   2012.8

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    DOI: 10.5575/geosoc.2012.0024

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  • Exact number of pore frames and their configuration in the Mesozoic radiolarian Pantanellium: An application of X-ray micro-CT and layered manufacturing technology to micropaleontology Reviewed

    Atsushi Matsuoka, Takashi Yoshino, Naoko Kishimoto, Naoto Ishida, Toshiyuki Kurihara, Katsunori Kimoto, Shu Matsuura

    MARINE MICROPALEONTOLOGY   88-89   36 - 40   2012.5

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    Nylon models of earliest Cretaceous Pantanellium were produced from a real fossil specimen by applying X-ray micro-CT and layered manufacturing technology. These models enable us to elucidate the exact number of polygonal pore frames and their configuration on the cortical shell, which is difficult to recognize from scanning electron microscope or light microscope images. The specimen has a total number of 27 polygonal (12 pentagonal and 15 hexagonal) pore frames. The pore frame number and the configuration are important criteria in the taxonomy of the Family Pantanelliidae. Planar graphs showing the distribution of polygonal pore frames on the cortical shell are depicted. They are expected to be a standard method for presenting and examining geometrical characters of pantanellid cortical shells. The new technology of X-ray micro-CT can shed light on detailed morphological examinations of not only radiolarians but also any other microfossils. (C) 2012 Elsevier B.V. All rights reserved.

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  • Ultrastructural and molecular characterization of cyanobacterial symbionts in Dictyocoryne profunda (polycystine radiolaria) Reviewed

    Tomoko Yuasa, Takeo Horiguchi, Shigeki Mayama, Atsushi Matsuoka, Osamu Takahashi

    SYMBIOSIS   57 ( 1 )   51 - 55   2012.5

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    Cyanobacterial symbionts were detected in the extracytoplasm of the polycystine radiolarian Dictyocoryne profunda Ehrenberg. The bacterial symbionts were observed as numerous spherical bodies similar to 0.5-1.0 mu m in diameter under transmission electron microscopy. They were present in a very restricted location close to the periphery of the host radiolarian shell, adjacent to the central capsular wall. Several cells of them may have been in the process of cell division or just divided. The symbionts had thylakoid-like structures, which ran around the cell periphery in two or three concentric layers. Based on the small subunit ribosomal DNA (16S rDNA) phylogenetic analyses, the intracellular symbiotic bacteria grouped with cyanobacteria belonging to the genus Synechococcus. Three sequences, one from each of three specimens of D. profunda, collected in March/October 2009 and March 2010 from the East China Sea, were the same and branched within Synechococcus clade II, that is characterized by strains with low amounts of phycourobilin (PUB).

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  • Lithology and Stratigraphy of the Mizukamidani Formation of the Tetori Group in the right bank "jointly worked"

    3   1 - 11   2012.3

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  • Radiolarian fossils from siliceous rock pebbles within conglomerates in the Mizukamidani Formation of the Tetori Group in the Itoigawa area, Niigata Prefecture, central Japan "jointly worked"

    Bulletin of the Itoigawa City Museums   3   13 - 25   2012.3

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  • Jurassic clam shrimp (“conchostracan”) faunas in China. "jointly worked" Reviewed

    Li, G, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   27   73 - 88   2012.3

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  • Early Jurassic fish from the Nishinakayama Formation of the Toyora Group, Yamaguchi Prefecture, southwest Japan. "jointly worked" Reviewed

    Nakada, K, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   27   1 - 7   2012.3

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  • International correlation of the Pliensbachian/Toarcian (Lower Jurassic) ammonoid biostratigraphy of the Nishinakayama Formation in the Toyora Group, southwest Japan Reviewed

    Kentaro Nakada, Atsushi Matsuoka

    NEWSLETTERS ON STRATIGRAPHY   44 ( 2 )   89 - 111   2011.6

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    The Toyora Group, Jurassic continental shelf sediments exposed in southwest Japan, is divided into three formations. The lower member of the Nishinakayama Formation, the middle part of the group, is characterized by an abundance of ammonoid fossils. Ammonite zonal schemes have been established, although these frameworks were difficult to correlate with European zonations. This study aims to revise the ammonite zonation of this member and to correlate the new zonal scheme with the European zonations. Four successive ammonoid zones are proposed (in ascending order): the Canavaria japonica Zone, the Paltarpites paltus Zone, the Dactylioceras helianthoides Zone and the Harpoceras inouyei Zone. These new zones are compared to the zonations established in European provinces. The base of the P. paltus Zone corresponds to the Pliensbachian/Toarcian boundary. In the Upper Pliensbachian, the lowermost part of the C. japonica Zone analyzed in this study is correlated with the Apyrenum Subzone. In the Lower Toarcian, the base of the D. helianthoides Zone seems to be compared to a horizon within the Clevelandicum Subzone, and the base of the H. inouyei Zone is correlated with the base of the Exaratum Subzone. The uppermost part is probably compared to the Fibulatum Subzone.

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  • Preservation of larval bivalve shells in a radiolarian chert in the Late Triassic (Early Norian) interval of the Malampaya Sound Group, Calamian Island, western Philippines Reviewed

    Tetsuji Onoue, Takashi Nikaido, Laurence R. Zamoras, Atsushi Matsuoka

    MARINE MICROPALEONTOLOGY   79 ( 1-2 )   58 - 65   2011.4

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    Silicified thin larval bivalve shells occur in Upper Triassic radiolarian chert (Early Norian) in the Liminangcong Formation of the Malampaya Sound Group, part of a Late Jurassic to Early Cretaceous subduction-related accretionary complex in the North Palawan Block, western Philippines. The bivalve-bearing radiolarian chert, which we term "bivalve chert," is considered to be a deep-sea sediment that accumulated in an open-ocean realm of the Panthalassa Ocean. Radiolarian and conodont biostratigraphies indicate an early Norian deposition of the thin-shelled bivalves. The bivalve morphology, thin shells (less than 30 mu m thick), smooth ornamentation, and small size (less than 1.3 mm long), suggests they represent larval shells. Although their taxonomic identity cannot be established with certainty, halobiid bivalves that lived in Norian times apparently had such a planktonic larval mode of life. (C) 2011 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.marmicro.2011.01.005

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  • Living radiolarians sampled on 7 June 2010 in surface-subsurface waters of the Japan Sea off Tassha, Sado Island, central Japan.

    Kurihara, T, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   26   53 - 60   2011.3

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  • 南相馬市の相馬中村層群小山田層の新産地から採集されたベリアシアン(白亜紀初期)アンモナイトおよびオウムガイ化石群集. Reviewed

    佐藤 正, 竹谷陽二郎, 八巻安夫, 栃久保廣泰, 荒 好, 平 宗雄, 岸崎晃一郎, 二上文彦, 田村 翼, 松岡 篤

    福島県立博物館紀要   25   25 - 48   2011.3

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  • Direct observation of the skeletal growth patterns of polycystine radiolarians using a fluorescent marker Reviewed

    Kaoru Ogane, Akihiro Tuji, Noritoshi Suzuki, Atsushi Matsuoka, Toshiyuki Kurihara, Rie S. Hori

    MARINE MICROPALEONTOLOGY   77 ( 3-4 )   137 - 144   2010.12

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    Skeletogenesis in polycystine radiolarians was detected, using a fluorescent compound called PDMPO (2-(4-pyridyl)-5-[(4-(2-dimethylaminoethylaminocarbamoyl)methoxy)-phenyl] oxazole). This compound binds under acidic conditions with silica in the silica deposition vesicle (SDV) of radiolarians, and only newly added silica emits a green fluorescence under ultraviolet light. We used cells fixed with formaldehyde of two species of spherical Spumellaria (Hexacontium philosophica and Rhizosphaera trigonacantha) and three species of cyrtid Nassellaria (Anthocyrtidium angulare, Clathrocyclas (?) cassiopeiae, and Lophophaena hispida), in which green fluorescence occurred in the entire skeleton outside the endoplasm. In contrast, the conical nassellarian species Eucyrtidium hexagonatum emitted green fluorescence only on the cephalo-thorax-abdominal part of the skeleton, and on part of the inner ring at the segmental suture, and the margins of pores, suggesting partial biological silicification. Two flat spumellarian species (Dictyocoryne profunda and Rhopalastrum elegans) showed bright green fluorescence over the full skeleton in some cells, but other cells did not fluoresce at all, even though young cells in good condition were tested, suggesting that intermittent growth occurs in these species, as known from a controlled incubation experiment. We did not observe development of new skeletons, but "skeletal thickening growth" (STG), defined as silica deposition over the surface of an existing skeleton, occurred to varying degrees in the polycystines, and may result in the formation of lamellar structures, as observed in sectioned skeletons of polycystines. (C) 2010 Elsevier B.V. All rights reserved.

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  • Global radiolarian zonation for the Pliensbachian, Toarcian and Aalenian Reviewed

    Elizabeth S. Carter, Spela Gorican, Jean Guex, Luis O'Dogherty, Patrick De Wever, Paulian Dumitrica, Rie S. Hori, Atsushi Matsuoka, Patricia A. Whalen

    PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY   297 ( 2 )   401 - 419   2010.11

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    Jurassic radiolarians from 220 samples in Queen Charlotte Islands, B.C., Williston Lake, B.C., east-central Oregon, Baja California Sur, southern Spain, Austria, Slovenia, Turkey, Oman, Japan and Argentina were studied in order to construct global zonation for the Pliensbachian, Toarcian and Aalenian stages. Well-preserved faunas from continuous stratigraphic sections in Queen Charlotte Islands provide the most detailed record for this time interval, and all collections are tied to North American ammonite zones or assemblages. Collections from nearly all other areas lack independent dating except for early Toarcian carbon-isotope dating in Slovenia and late Aalenian ammonites in Spain.
    A database of 197 widely distributed updated taxonomic species was used to construct a Unitary Association (UA) zonation for the interval. A global sequence of 41 UAs was obtained for the top of the Sinemurian to the base of the Bajocian. The first and the last UAs represent the Late Sinemurian and the Early Bajocian respectively. The remaining 39 UAs were merged into nine zones (four Early Pliensbachian, one Late Pliensbachian, one Early Toarcian, one Middle-Late Toarcian, and two Aalenian) according to prominent radiolarian faunal breaks and ammonite data. The new zones are the Canutus tip pen - Katroma clara Zone (latest Sinemurian/earliest Pliensbachian); Zartus mostleri - Pseudoristola megaglobosa, Hsuum mulleri - Trillus elkhornensis and Gigi fustis - Lantus sixi zones (Early Pliensbachian); Eucyrtidiellum nagaiae - Praeparvicingula tlellensis Zone (Late Pliensbachian); Napora relica - Eucyrtidiellum disparile Zone (Early Toarcian); Elodium pessagnoi - Hexasaturnalis hexagonus Zone (Middle and Late Toarcian); Higumastra transversa - Napora nipponica Zone (early Aalenian); and Mirifusus proavus - Transhsuum hisuikyoense Zone (late Aalenian). These zones can be correlated worldwide and link previously established UA zonations for the Hettangian-Sinemurian and the Middle to Upper Jurassic. The new zonation allows high-resolution dating in the studied interval and provides a solid basis for analyzing faunal turnovers and the paleobiogeography of Jurassic radiolarians. (C) 2010 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.palaeo.2010.08.024

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  • Living radiolarian fauna of late autumn (November 13, 2008) in surface-subsurface waters of the Japan Sea off Tassha, Sado Island, central Japan.

    Kurihara, T, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   25   83 - 92   2010.3

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  • Biometrical analysis on primary rib number of the Middle Jurassic ammonoid Pseudoneuqueniceras yokoyamai (Kobayashi & Fukada) and its allied forms.

    Matsuoka, A, Anso, J, Nakada, K, Terabe, K, Sato, T

    Cephalopods Present and Past.   187 - 194   2010.1

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  • Enlarged Skeleton Models of Plankton for Tactile Teaching Reviewed

    Yoshinori Teshima, Atsushi Matsuoka, Mamoru Fujiyoshi, Yuji Ikegami, Takeshi Kaneko, Susumu Oouchi, Yasunari Watanabe, Kenji Yamazawa

    COMPUTERS HELPING PEOPLE WITH SPECIAL NEEDS, PROCEEDINGS, PT 2   6180   523 - +   2010

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    Blind people can learn about real objects through tactile sensations. However, the objects are sometimes rather small to observe by touch. Enlarged three-dimensional (3D) models for such tiny objects are useful for tactile teaching. This paper presents the first exact models of radiolaria and foraminifera. Their 3D shape data are measured using micro X-ray CT, and their exact 3D models are constructed using layered manufacturing. A recognition test showed the immense usefulness of these enlarged models for blind students in learning the shapes of micro-organisms.

    DOI: 10.1007/978-3-642-14100-3_78

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  • Distribution patters of the radiolarian nuclei and symbionts using DAPI-fluorescence.

    Suzuki, N, Ogane, K, Aita, Y, Kato, M, Sakai, S, Kurihara, T, Matsuoka, A, Ohtsuka, S, Go, A, Nakaguchi, K, Yamaguchi, S, Takahashi, T, Tuji, A

    Bulletin of the National Museum of Nature and Science, Series B (Botany)   35   169 - 182   2009.12

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  • A simple mathematical model for chamber arrangement of planktic foraminifera.

    Yoshino, T, Kimoto, K, Kishimoto, N, Matsuoka, A, Kurihara, T, Ishida, N, Matsuura, S

    FORMA   24 ( 3 )   87 - 92   2009.12

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  • On the Pliensbachian/Toarcian boundary in the Lower Jurassic Toyora Group in southwest Japan

    Nakada, K, Matsuoka, A

    Volumina Jurassica, Warsaw University   7   51 - 58   2009.12

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  • Sporogenesis of an extracellular cell chain from the spheroidal radiolarian host Haliommilla capillaceum (Haeckel), Polycystina, Protista

    Noritoshi Suzuki, Toshiyuki Kurihara, Atsushi Matsuoka

    MARINE MICROPALEONTOLOGY   72 ( 3-4 )   157 - 164   2009.9

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    We present the first record of a living solitary spherical polycystine radiolarian, Haliommilla capillaceum (Haeckel), with a chain of extracellular cells. The extracellular cells divided seven times over about 4 h from the 8-cell to the 1024-cell stage and then swam away. At the 1024-cell stage the cells were very small, isospores (ca. 12 mu m in length). After final cytokinesis, the cells remained essentially immobile, with only occasional movement. After this immobile stage, they abruptly swam out in a burst into seawater. The cell division patterns and cell shape are similar to the sporogenesis of the host-specific parasitic dinoflagellate Duboscquella sp. infecting a tintinnid. Precise identification, however, needs molecular analysis, transmitted scanning images and proliferation test. (C) 2009 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.marmicro.2009.04.007

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  • 放散虫Mirifusus属(海洋プランクトン)の進化と骨格構造の力学的最適化-骨格形状遷移の構造力学的検証-

    吉野 隆, 石田直人, 岸本直子, 松岡 篤, 栗原敏之, 木元克典, 松浦 執

    応用力学論文集   12   35 - 42   2009.8

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  • 関東山地秩父累帯の山中白亜系瀬林層より産出したバレミアン期テチス型二枚貝群集

    寺部和伸, 松岡 篤

    地質学雑誌   115 ( 3 )   122 - 132   2009.3

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    DOI: 10.5575/geosoc.115.130

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  • A late-winter (March 10, 2008) living radiolarian fauna in surface-subsurface waters of the Japan Sea off Tassha, Sado Island, central Japan.

    Kurihara, T, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   24   81 - 90   2009.3

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  • Late autumn living radiolarian fauna from sub-tropical surface waters in the East China Sea off Sesoko Island, Okinawa, southwest Japan.

    Matsuoka, A

    News of Osaka Micropaleontologists, Special Volume   14   11 - 29   2009.2

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  • 関東山地上吉田層(北部秩父帯)の珪質泥岩から産出したジュラ紀中世放散虫化石.

    小久保晋一, 松岡 篤

    大阪微化石研究会誌, 特別号   14   493 - 499   2009.2

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  • First application of PDMPO to examine silicification in polycystine radiolaria Reviewed

    Kaoru Ogane, Akihiro Tuji, Noritoshi Suzuki, Toshiyuki Kurihara, Atsushi Matsuoka

    Plankton and Benthos Research   4 ( 3 )   89 - 94   2009

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    2-(4-pyridyl)-5-[(4-(2-dimethylaminoethylaminocarbamoyl)methoxy)-phenyl] oxazole (PDMPO) is a fluorescent compound that accumulates in acidic cell compartments. PDMPO is accumulated with silica under acidic conditions, and the newly developed silica skeletons show green fluorescent light. This study is the first to use PDMPO in polycystine radiolarians, which are unicellular planktonic protists. We tested Acanthodesmia sp., Rhizosphaera trigonacantha, and Spirocyrtis scalaris for emission of green fluorescence. Entire skeletons of Acanthodesmia sp. and Sr. scalaris emitted green fluorescent light, whereas only the outermost shell and radial spines of Rz. trigonacantha showed fluorescence. Two additional species, Spongaster tetras tetras and Rhopalastrum elegans did not show fluorescence. Green fluorescence of the entire skeleton is more like the "skeletal thickening growth" defined by silica deposition throughout the surface of the existing skeleton. The brightness of the fluorescence varied with each cell. This difference in fluorescence may reflect the rate of growth in these cells. Green fluorescence in PDMPO-treated polycystines suggests the presence of similar metabolic systems with controlled pH. The results of this study shed light not only on the feasibility of using PDMPO in diatoms and siliceous sponges, but also in polycystines. Further application of PDMPO could refine polycystine skeletogenic hypotheses and offer new insight on the physiological functions of silica assimilation. © The Plankton Society of Japan.

    DOI: 10.3800/pbr.4.89

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  • Catalogue of Mesozoic radiolarian genera. Part 2: Jurassic-Cretaceous Reviewed

    Luis O&apos;Dogherty, Elizabeth S. Carter, Paulian Dumitrica, Spela Gorican, Patrick De Wever, Alexandre Nicolas Bandini, Peter O. Baumgartner, Atsushi Matsuoka

    GEODIVERSITAS   31 ( 2 )   271 - 356   2009

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    The catalogue of Mesozoic radiolarian genera is a revision of all described genera with re-illustration of their type species. This project was organized under the auspices of the International Association of Radiolarian Paleontologists (Inter-Rad), and was carried out by the Mesozoic Working Group. This is the second of two contributions, this one devoted to the Jurassic-Cretaceous period. It contains 581 genera with re-illustration of their type species. This part shares 30 genera in common with the Triassic catalogue, most of which arose in the Carnian, Norian and Rhaetian. The sharp difference manifested between the Triassic fauna and the Jurassic-Cretaceous fauna is so evident that it justifies two independent catalogues. A comparable division between the Jurassic and Cretaceous could not be justified however, because of the similarity of the fauna, and by the greater number of genera crossing the Jurassic-Cretaceous boundary which is three times that for the Triassic-Jurassic boundary. A distinct characteristic of Jurassic-Cretaceous genera is the high number of nomina dubia (up to 131), contrary to the low number in the Triassic interval. This reflects, in part, the influence of Haeckelian taxonomy in earlier research on Jurassic-Cretaceous faunas prior to the application of SEM techniques. The Mesozoic Working Group has carefully reviewed and re-examined the taxonomy of all available genera, their family assignment and stratigraphic ranges. Following careful comparisons, 91 genera were declared as synonyms. The review has noted 26 homonyms which were duly notified to their corresponding authors, and were corrected previous to the publication of this catalogue. In spite of this effort, unfortunately nine homonyms still remain. Two invalid nominal genera, and two nomina nuda are also reported. The systematic revisions have validated 341 genera for the Jurassic-Cretaceous interval. At the end of this catalogue 24 additional are resented as support for those genera having a poor photographs p original illustration of the type species.

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  • Pseudopodial features and feeding behavior of living nassellarians Eucyrtidium hexagonatum Haeckel, Pterocorys zancleus (Muller) and Dictyocodon prometheus Haeckel

    Kazuhiro Sugiyama, Rie S. Hori, Yoshitaka Kusunoki, Atsushi Matsuoka

    PALEONTOLOGICAL RESEARCH   12 ( 3 )   209 - 222   2008.9

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    Light microscopic studies, using both video imaging and normal camera, were made on living nassellarian radiolarians Eucyrtidium hexagonatum Haeckel, Pterocotys zancleus (Muller) and Dictyocodon prometheus Haeckel from the East China Sea off Okinawa Island, Japan. Continuous and careful observations revealed pseudopodial activity related mostly to feeding behavior. The results are presented in detail with the definition of 11 descriptive terms for nassellarian pseudopodia. Among them, terminal projections (TP) extending as straight projections from the aperture of the shell body and forming a conical structure (terminal cone: TC) and axial projections (XP) prolonged outward from the center of the aperture and proximally surrounded by TP are used for feeding. Although there are some minor differences, feeding activities of the three species can be subdivided into the following three cyclic phases; Phase I characterized by gradual extension of TP and XP from the aperture, Phase 2 marked by an abrupt withdrawal of TP and XP toward the aperture to engulf captured prey, and Phase 3 during which entangled TP used for capturing prey are completely retracted into the aperture. These lines of evidence suggest that the shell aperture plays the same role of a feeding apparatus as does a mouth. Interestingly, XP of E. hexagonatum sometimes shows abnormal branching, fusion and separation, which is different from the spumellarian axotlagellum.

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  • Radiolarian faunal characteristics in surface-subsurface waters of the Japan Sea off Tassha, Sado Island, central Japan in June 2007:inflowing radiolarians on the Tsushima Warm Current.

    Kurihara, T, Uchida, K, Shimotani, T, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   23   65 - 74   2008.3

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  • 愛媛県城川地域の上部ジュラ系今井谷層群下相層中の鳥巣式石灰岩岩塊より厚歯二枚貝の発見. Reviewed

    佐野晋一, スケルトン ピーター, 武井雅彦, 松岡 篤

    地質学雑誌   113   500 - 503   2007.9

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    DOI: 10.5575/geosoc.113.500

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  • Living radiolarian feeding mechanisms: new light on past marine ecosystems

    Atsushi Matsuoka

    SWISS JOURNAL OF GEOSCIENCES   100 ( 2 )   273 - 279   2007.9

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    Environmentally controlled studies on living radiolarians, especially on their feeding mechanisms are rare. In the same way, feeding behaviours of fossil radiolarians are poorly known. In this work, techniques for living radiolarian research, including plankton sampling at sea, observations using different types of microscopes, and laboratory culture, are introduced. Light microscope, epifluorescence microscope, and confocal laser scanning microscope images of selected radiolarian species are presented. Four types of feeding behaviour which correspond well to skeletal morphology are recognized and discussed. Multi-segmented nassellarians, represented by Eucyrtidium, Pterocorys, and Spirocyrtis, take relatively large prey, including ciliates and flagellates. Some other nassellarians, e.g. Pseudocubus and Arachnocorallium, are advantageous in collecting tiny prey including microflagellates and bacteria. Solitary spumellarians, represented by Diplosphaera, Spongosphaera, and Spongaster, also gather tiny prey. Colonial radiolarians such as Collozoum and Buccinosphaera seem to live exclusively on symbiotic algae. The wide variation in feeding behaviour means that radiolarians occupy several kinds of ecological niches in marine environments. Assuming that the radiolarian skeletal morphology indicates their feeding strategy, living forms can give some light on the feeding mechanisms of similar Mesozoic forms. By contrast, the unique curved conical skeleton of the Paleozoic Albaillellaria, unknown after the end-Permian mass extinction, suggests a different feeding behaviour.

    DOI: 10.1007/s00015-007-1228-y

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  • Quantitative morphological analyses and evolutionary history of the Middle Jurassic polycystine radiolarian genus Striatojaponocapsa Kozur Reviewed

    Kentaro Hatakeda, Noritoshi Suzuki, Atsushi Matsuoka

    MARINE MICROPALEONTOLOGY   63 ( 1-2 )   39 - 56   2007.4

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    Middle Jurassic polycystine radiolarian species belonging to the genus Striatojaponocapsa show major morphological changes in the basal structure of the test, overall shell size and shape, and the developmental state of irregular polygonal pore frames. Striatojaponocapsa species also vary widely in the number and arrangement pattern of longitudinal plicae. Striatojaponocapsa plicarum (Yao), with a large basal appendage, gave rise to S. synconexa O'Dogherty, Gorican, and Dumitrica, characterized by reduced basal appendage size and a circular depression. Specimens of the S. plicarum-synconexa species group (S. plicarum and S. synconexa) and S. conexa (Matsuoka), with fewer or highly irregular plicae, were relatively atypical and their morphology can be explained by intraspecific variation. The S. plicarum-synconexa species group gradually increased in overall shell size and had a very distinct lumbar stricture in particular horizons. Striatojaponocapsa conexa became more elongated over time; the stricture of this species became indistinct over time. The remaining species, S. riri O'Dogherty, Gorican, and Durmtrica, evolved from S. conexa and developed more than 42 irregular polygonal pore frames in the middle of the S. conexa zone. The stratigraphic distributions of Striatojaponocapsa reflect two evolutionary lineages: S. plicarum continuously and gradually changed into S. synconexa, then S. synconexa was rapidly replaced by S. conexa in a phyletic evolutionary, process. After S. conexa gave rise to S. riri, the former coexisted with small numbers of the latter, showing cladogenetic speciation. (c) 2006 Elsevier B.V. All rights reserved.

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  • Radiolarian faunas and water properties in surface and subsurface waters of the Japan Sea in September 2005, off Tassha, Sado Island, central Japan Reviewed

    Kurihara, T, Uchida, K, Shimotani, T, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   22   43 - 56   2007.3

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  • A Solution for Universal Classification of Species Based on Genomic DNA Reviewed

    Kouduka, M, Sato, D, Komori, M, Kikuchi, M, Miyamoto, K, Kosaku, A, Naimuddin, M, Matsuoka, A, Nishigaki, K

    International Journal of Plant Genomics   2007   1 - 8   2007.2

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  • Acquisition of genome information from single-celled unculturable organisms (radiolaria) by exploiting genome profiling (GP) Reviewed

    Mariko Kouduka, Atsushi Matsuoka, Koichi Nishigaki

    BMC GENOMICS   7   135 - 135   2006.6

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    Background: There is no effective method to obtain genome information from single-celled unculturable organisms such as radiolarians. Even worse, such organisms are often very difficult to collect. Sequence analysis of 18S rDNA has been carried out, but obtaining the data has been difficult and it has provided a rather limited amount of genome information. In this paper, we have developed a method which provides a sufficient amount of data from an unculturable organism. The effectiveness of this method was demonstrated by applying it to the provisional classification of a set of unculturable organisms ( radiolarians).
    Results: Dendrogram was drawn regarding the single-celled unculturable species based on the similarity score termed PaSS, offering a consistent result with the conventional taxonomy of them built up based on phenotypes. This fact has shown that genome profiling-based technology developed here can obtain genome information being sufficient for identifying and classifying species from a single-celled organism.
    Conclusion: Since this method is so simple, general, and yet powerful, it can be applied to various organisms and cells, especially single-celled, uncluturable ones, for their genome analysis.

    DOI: 10.1186/1471-2164-7-135

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  • Phylogenetic position of the small solitary phaeodarians (Radiolaria) based on 18S rDNA sequences by single cell PCR analysis Reviewed

    T Yuasa, O Takahashi, JK Dolven, S Mayama, A Matsuoka, D Honda, KR Bjorklund

    MARINE MICROPALEONTOLOGY   59 ( 2 )   104 - 114   2006.4

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    Within the holoplanktonic protists group Radiolaria, the Class Phaeodarea is today represented by several hundreds species. The phaeodarian skeletons consist of opaline silica as well as organic matter and are very fragile and vulnerable to dissolution. Their tests are therefore rarely found in the fossil records; this has caused uncertainty with regard to their phylogenetic evolution. In this study, small, solitary phaeodarian species, namely, Protocystis xiphodon (Haeckel), Challengeron diodon Haeckel and Conchellium capsula Borgert were examined using molecular techniques in order to clarify the phylogenetic position of the Phaeodarea. The phylogenetic trees obtained from the neighbor-joining, maximum-parsimony and maximum-likelihood methods of analysis showed that all phaeodarians formed a monophyletic group within the Phylum Cercozoa. This result contradicts Haeckel's classical taxonomy, wherein the phaeodarians were grouped along with the polycystines, i.e., nassellarians and spumellarians, and the acantharians under the common name "Radiolaria". Within the cercozoan clade, the Phaeodarea were closely related to the euglyphid and pseudodifflugid testate amoebae and the desmothoracid heliozoans. The tests and skeletons of both the phaeodarians and the euglyphid testate amoebae resemble each other in their chemical composition and construction. The similarities in the morphologic features may suggest that they are sisters as the Phylum Cercozoa in which leading from molecular methods. (c) 2006 Elsevier B.V All rights reserved.

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  • Water temperature, salinity, algal-chlorophyll profiles and radiolarian fauna in the surface and subsurface waters in early June off Tassha, Sado Island, central Japan Reviewed

    Kurihara, T, Shimotani, T, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   21   31 - 46   2006.3

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  • Latest Jurassic-earliest Cretaceous radiolarian fauna from the Xialu chert in the Yarlung Zangbo suture zone, southern Tibet: Comparison with coeval western Pacific radiolarian faunas and paleoceanographic implications Reviewed

    A Matsuoka, Q Yang, M Takei

    ISLAND ARC   14 ( 4 )   338 - 345   2005.12

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    The Xialu chert radiolarian fauna is latest Jurassic - earliest Cretaceous in age ( Pseudodictyomitra carpatica zone) and contains many taxa in common with coeval northern hemisphere middle-latitude ( temperate) radiolarian faunas represented by the Torinosu fauna in southwest Japan. Common elements include Eucyrtidiellum pyramis ( Aita), Protunuma japonicus Matsuoka & Yao, Sethocapsa pseudouterculus Aita, Sethocapsa (?) subcrassitestata Aita, Archaeodictyomitra minoensis ( Mizutani), Stichocapsa praepulchella Hori and Xitus gifuensis ( Mizutani). The Xialu fauna is less similar to low-latitude ( tropical) assemblages represented by the Mariana fauna. For this reason, the Xialu fauna is regarded as representative of a southern hemisphere middle-latitude ( temperate) fauna. A mirror-image bi-temperate provincialism to the equator in radiolarian faunas is reconstructed for the Ceno-Tethys and Pacific Ocean in latest Jurassic - earliest Cretaceous time.

    DOI: 10.1111/j.1440-1738.2005.00491.x

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  • Shell variavility of Pseudocubus obeliscus Haeckel in the early autumn radiolarian fauna off Tassha, Sado Island, central Japan Reviewed

    Kurihara, T, Matsuoka,A

    Science Reports of Niigata University, Series E (Geology)   20   29 - 45   2005.3

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  • 愛媛県城川地域に分布する上部ジュラ系今井谷層群下相層中の含大型化石泥質岩岩塊 Reviewed

    武井雅彦, 松岡 篤

    地質学雑誌   110   163 - 174   2004.12

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  • Accretion and postaccretion tectonics of the Calamian Islands, North Palawan block, Philippines Reviewed

    LR Zamoras, A Matsuoka

    ISLAND ARC   13 ( 4 )   506 - 519   2004.12

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    Upper Paleozoic to Mesozoic sedimentary sequences of chert (Liminangcong Formation), clastics (Guinlo Formation) and a number of limestone units (Coron Formation, Minilog Formation and Malajon Limestone) constitute the accretionary complex of the North Palawan block, Philippines. Based on chert-to-clastic transitions from different stratigraphic sequences around the Calamian Islands, three accretionary belts are delineated: the Northern Busuanga Belt (NBB), the Middle Busuanga Belt (MBB) and the Southern Busuanga Belt (SBB). The accretion events of these belts along the East Asian accretionary complex, indicated by their sedimentary transitions, began with the Middle Jurassic NBB accretion, followed by the Late Jurassic MBB accretion and the Early Cretaceous SBB accretion. Several limestone blocks that formed over the seamounts became juxtaposed with chert-clastic sequences during accretion. During the Late Cretaceous, accretion-subduction along the East Asian margin subsided bringing tectonic stability to the region. The seafloor spreading during the mid-Oligocene disconnected the entire North Palawan block from the Asian mainland and then migrated southward. The collision between the North Palawan block and the Philippine Island Arc system in the middle Miocene generated a megafold structure in the Calamian Islands as a result of the clockwise turn of the accretionary belts in the eastern Calamian from originally northeast-southwest to northwest-southeast.

    DOI: 10.1111/j.1440-1738.2004.00443.x

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  • Toarcian (Early Jurassic) radiolarian fauna from the Nanjo Massif in the Mino Terrane, central Japan Reviewed

    Matsuoka, A

    News of Osaka Micropaleontologists, Special Volume   13   69 - 87   2004.12

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  • Shell structure and morphologic variation in Spongosphaera streptacantha Haeckel (Spumellaria, Radiolaria) Reviewed

    Kurihara T, Matsuoka A

    Science Report,Niigata University, Series E(Geology)   19   35 - 48   2004.12

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  • Late Jurassic and early Cretaceous ammonites from the Weimei Formation in Gyangze, southern Tibet Reviewed

    M Takei, A Matsuoka, Q Yang, K Kobayashi, T Nagahashi, QG Zeng, YJ Wang, GX He

    RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA   110 ( 1 )   269 - 272   2004.4

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    The We mei Formation in southern Tibet is a shallow marine sequence accumulated in the northern margin of the Indian subcontinent. It has been dated as Tithonian based on ammonites such as Haplphylloceras strigile (Blanford), Berriasella sp. and Himalayites sp.. Six ammonite specimens were found in the type locality of the Weimei Formation. They include Spiticeras (Spiticeras) spitiense (Blanford), Berriasella sp. and Phylloceras sp.. The occurrence of S. spitiense indicates that the ammonite-bearing portion is assignable to the Berriasian stage. The Jurassic/Cretaceous boundary possibly exists within the Weimei Formation.

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  • Late spring radiolarian fauna in the surface water off Tassha, Aikawa Town, Sado Island, central Japan Reviewed

    Itaki, T, Matsuoka, A, Yoshida, K, Machidori, S, Shinzawa, M, Todo, T

    Science Reports of Niigata University, Series E (Geology)   17   41 - 51   2003.12

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  • 関東山地秩父累帯両神山チャートユニットのパイルナップ構造 Reviewed

    吉田和弘, 松岡 篤

    地質学雑誌   109   324 - 335   2003.12

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    DOI: 10.5575/geosoc.109.324

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  • 福井県九頭竜川上流地域の手取層群から産出した前期白亜紀胞子・花粉化石 Reviewed

    梅津慶太, 松岡 篤

    地質学雑誌   109   420 - 423   2003.12

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    DOI: 10.5575/geosoc.109.420

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  • Host-symbiont associations of polycystine Radiolaria: epifluorescence microscopic observation of living Radiolaria Reviewed

    O Takahashi, S Mayama, A Matsuoka

    MARINE MICROPALEONTOLOGY   49 ( 3 )   187 - 194   2003.10

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    In all 29 polycystine radiolarian species were obtained from surface seawater on May 28, 1999, using a plankton-net at one station (Site 990528; 26degrees37'18"N, 127degrees47'35"E) approximately 5 km northwest of Okinawa Island, Japan. In most polycystine radiolarians of the orders Nassellarida and Spumellarida symbiotic algae were observed under light microscopy. The light microscopic (LM) images of the symbionts, however, varied in clarity among individuals because of the variations in microanatomy of the host radiolarian cells. On the other hand, epifluorescence microscopic (EFM) observation easily detected and confirmed the existence of the algal symbionts within the host cytoplasm even in radiolarians such as Dictyocoryne truncatum (Ehrenberg) that include algal symbionts in the depth of the cytoplasm. The chloroplasts of the algal symbionts emitted autofluorescence in ultraviolet irradiation and they appeared red. That is, the autofluorescence images of the chloroplasts can be used to recognize the existence of the algal symbionts within the host radiolarians. Moreover, staining of the symbiont cells with 4',6-diamido-2-phenylindle permitted visualization of the nucleus in the center of the symbiont cell, confirming the existence of living endosymbiotic algae within the polycystine radiolarians. Both the LM and EFM observations of eight polycystine radiolarian species revealed the specific patterns of various host-symbiont associations. (1) The investigated polycystine radiolarians all possess algal symbionts, except for one species, i.e. Dictyocoryne profunda Ehrenberg. (2) The size of the algal symbionts depends on the radiolarian species. The symbionts are largely classified into two types based on the size of their diameters, i.e. about 8-10 mum for the larger group and about 5 mum for the smaller one. (3) The algal symbionts show a variety of locations within the host radiolarian cytoplasm. The types of distribution of algal symbionts may be a useful characteristic for radiolarian taxonomy. (C) 2003 Elsevier B.V. All rights reserved.

    DOI: 10.1016/S0377-8398(03)00035-5

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  • Progress in radiolarian micropaleontological studies of southern Tibet Reviewed

    Yang, Q, Matsuoka, A, Wang, Y

    Acta Micropalaeontologica Sinica   19   105 - 111   2002.12

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  • Triassic radiolarians from the Yarlung Zangbo Suture Zone in the Jinlu area, Zetang County, southern Tibet Reviewed

    Wang, Y, Yang, Q, Matsuoka, A, Kobayashi, K, Nagahashi, T, Zeng, Q

    Acta Micropalaeontologica Sinica   19   215 - 227   2002.12

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  • 古海洋学の最近の進展と古生物学-地球史における海洋環境研究の最前線- Reviewed

    西 弘嗣, 北里 洋, 松岡 篤

    月刊地球   24   377 - 381   2002.12

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  • 放散虫オーシャン(古生代~中生代)の古海洋学 Reviewed

    松岡 篤

    月刊地球   24   444 - 448   2002.12

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  • Bottom sediments and benthic faunas off the Tassha in Sado Island, Niigata Prefecture, central Japan "jointly worked" Reviewed

    Tamura, K, Sakumoto, T, Yabe, H, Matsuoka, A, Niikawa, I, Tateishi, M, Hasegawa, S, Yoshida, K, Shinzawa, M

    Science Reports of Niigata University, Series E (Geology)   17   27 - 41   2002.3

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  • Early summer radiolarian fauna in surface waters off Tassha, Aikawa Town, Sado Island, central Japan "jointly worked" Reviewed

    Matsuoka, A, Shinzawa, M, Yoshida, K, Machidori, S, Kurita, H, Todo, T

    Science Reports of Niigata University, Series E (Geology)   17   17 - 25   2002.3

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  • Sediment reworking into the Pleistocene Sawane Formation at Shichiba, Sado Island, Niigata, Japan: A view from dinoflagellate cyst assemblages. "jointly worked" Reviewed

    Kurita, H, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   17   43 - 57   2002.3

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  • Jurassic-Cretaceous radiolarian biostratigraphy and sedimentary environments of the Ceno-Tethys: Records from the Xialu Chert in the Yarlung-Zangbo Suture Zone, Southern Tibet Reviewed

    Atsushi Matsuoka, Qun Yang, Kenta Kobayashi, Masahiko Takei, Toru Nagahashi, Qinggao Zeng, Yujing Wang

    Journal of Asian Earth Sciences   20 ( 3 )   277 - 287   2002

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    Radiolarian biostratigraphic research has been carried out along two continuous sections through the Xialu Chert, one of the accreted sheets included in the Yarlung-Zangbo Suture Zone. Six radiolarian zones have been identified as follows: Laxtorum(?) jurassicum Zone (Aalenian), Tricolocapsa plicarum Zone (Bajocian-lower Bathonian). Stylocapsa(?) spiralis Zone (upper Callovian-Oxfordian), Hsuum maxwelli Zone (Kimmeridgian), Pseudodictyomitra carpatica Zone (upper Tithonian-lower Valanginian), and Turbocapsula costata Zone (Aptian). A reconstructed stratigraphy of the Xialu Chert, based on lithological succession and radiolarian dating, indicates that the chert exhibits a long depositional history, at least from early Middle Jurassic (Aalenian) to late Early Cretaceous (Aptian). The separation of the Lhasa Block from the northern Gondwana margin must, therefore, be dated before the Aalenian. The absence of calcareous sediments in the Xialu Chert indicates that the oceanic basin was deeper than the CCD throughout the depositional history. The transition from chert to siliceous mudstone is recorded sometime in Early Cretaceous, most probably around the Barremian/Aptian boundary. This means that the oceanic plate had already started being consumed at a trench by that time. The accretion of the Xialu Chert occurred after the Aptian time. © 2002 Elsevier Science Ltd. All rights reserved.

    DOI: 10.1016/S1367-9120(01)00044-X

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  • O-307 Early Cretaceous Pteridophyta spores from the Tetori Group and it's significance

    UMETSU Keita, MATSUOKA Atsushi

    Annual Meeting of the Geological Society of Japan   2002   152 - 152   2002

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    DOI: 10.14863/geosocabst.2002.0_152_1

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  • Temperature profile and radiolarian fauna in surface waters off Tassha, Aikawa Town, Sado Island, central Japan Reviewed

    Atsushi MATSUOKA, Kazuhiro YOSHIDA, Satoshi HASEGAWA, Midori SHINZAWA, Kazutoshi TAMURA, Tatsuya SAKUMOTO, Hideo YABE, Isao NIIKAWA, Masaaki TATEISHI

    Science Reports of Niigata University, Series E (Geology)   16   83 - 93   2001.12

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  • チベット南部ヤールンツアンポー縫合帯の珪質堆積物 -東テチスの古海洋学- Reviewed

    松岡篤, 楊群, 小林健太, 長橋徹, 武井雅彦, 曾慶高, 王玉浄

    古生物学トピックス   2   39 - 44   2001.12

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  • フィリピン北パラワン地塊のジュラ紀付加体 -日本のジュラ紀付加体の南西延長- Reviewed

    松岡篤, Zamoras,L R

    古生物学トピックス   2   31 - 38   2001.12

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  • Malampaya Sound Group: a Jurassic-Early Cretaceous accretionary com-plex in Busuanga Island, North Palawan Block (Philippines) Reviewed

    Zamoras,L R, Matsuoka,A

    Jour. Geol. Soc. Japan   107 ( 5 )   316 - 336   2001.5

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  • Early Midle Jurassic (Aalenian) radiolarian fauna from the xialu chert in the Yarlung Zangbo Suture zone, southern Tibet Reviewed

    A Matsuoka, K Kobayashi, T Nagahashi, Q Yang, YJ Wang, QG Zeng

    FAUNAL AND FLORAL MIGRATIONS AND EVOLUTION IN SE ASIA-AUSTRALASIA   105 - 110   2001

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    An early Middle Jurassic (Aalenian) radiolarian fauna is reported from the Xialu chert in the Yarlung Zangbo Suture Zone. This is the oldest known fossil record from the chert. The fauna comes from a chert sample which contains no terrigenous elements other than clay minerals. This indicates that the Ceno-Tethys was already a rather wide ocean with a pelagic environment far from continents by that time. The rifting and separation of the Lhasa Block from the northern Gondwana margin must have occurred well before early Middle Jurassic time.

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  • 北小松地域の地質

    木村克己, 吉岡敏和, 中野聰志, 松岡 篤

    地域地質研究報告(5万分の1地質図幅),地質調査所   1 - 102   2001

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  • P-45 Pile-nappe structure of the Ryokami-yama chert unit in the Kanto Mountains, central Japan

    Yoshida Kazuhiro, Matsuoka Atsushi

    Annual Meeting of the Geological Society of Japan   2001   220 - 220   2001

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    DOI: 10.14863/geosocabst.2001.0_220_1

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  • 付加体研究のツールとしての放散虫 Reviewed

    松岡 篤

    地質学論集   no. 55   17 - 26   2000.12

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  • A direct correlation between North American and Japan-Pacific radiolarian zonal schemes for the Upper Jurassic. Reviewed

    MATSUOKA, A, YANG, Q

    GeoResearch Forum   6   119 - 128   2000.12

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  • Early Late Jurassic radiolarians from the clastic unit in Busuanga Island, North Palawan, Philippines. "jointly worked" Reviewed

    Zamoras, L.R, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   15   91 - 109   2000.3

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    File: 81_Zamoras_Matsuoka_2000.pdf

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  • A Middle Triassic radiolarian assemblage from Quxia, Lhaze County, southern Tibet. "jointly worked" Reviewed

    Yang, Q, Matsuoka, A, Wang, Y, Kobayashi, K, Nagahashi, T, Zeng, Q

    Science Reports of Niigata University, Series E (Geology)   15   59 - 65   2000.3

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  • Current activities of radiolarian research. Reviewed

    MATSUOKA, A

    Forma   14(1-2)   199 - 204   1999.12

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  • Late Jurassic (Tithonian) radiolarians from a clastic unit of the Khabarovsk complex (Russian Far East): Significance for subduction accretion timing and terrane correlation Reviewed

    Sergei Zyabrev, Atsushi Matsuoka

    Island Arc   8 ( 1 )   30 - 37   1999.3

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    A well-preserved radiolarian fauna from a clastic unit of the Khabarovsk accretionary complex (southern part of the Badzhal accretionary wedge terrane in the Russian Far East) is assigned to the basal part of the Pseudodictyomitra carpatica zone. The age of the fauna is most likely late Tithonian. This is the first reliable dating of the clastic unit and makes it possible to constrain the timing of subduction accretion in the Badzhal terrane. The Khabarovsk complex is correlated chronologically with the Bikin and Samarka terranes (Russian Far East), Mino, Southern Chichibu and North Kitakami terranes (Japan), and Nadanhada terrane (northeast China).

    DOI: 10.1046/j.1440-1738.1999.00220.x

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  • 紀伊山地中央部の中・古生界(その6)-辻堂地域- Reviewed

    大和大峯グループ

    地球科学   52   275 - 291   1998.12

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    DOI: 10.15080/agcjchikyukagaku.52.4_275

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  • Faunal composition of earliest Cretaceous (Berriasian) radiolaria from the Mariana Trench in the western Pacific. Reviewed

    MATSUOKA, A

    News of Osaka Micropaleontologists   Special Volume No. 11   165 - 187   1998.12

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  • 四国西端部秩父累帯の地体構造区分 Reviewed

    松岡 篤

    地質学雑誌   104 ( 9 )   565 - 576   1998.12

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  • 付加体地質の観点に立った秩父累帯のユニット区分と四国西部の地質 Reviewed

    松岡 篤, 山北 聡, 榊原正幸, 久田健一郎

    地質学雑誌   104 ( 9 )   634 - 653   1998.12

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    DOI: 10.5575/geosoc.104.634

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  • Accretionary complexes in southwest Japan and Cretaceous tectonics

    Matsuoka, A

    Earth Monthly   19 ( 3 )   188 - 191   1997.3

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  • A comparative study on Upper Jurassic radiolarian biostratigraphy of the Taman Formation, east-central Mexico and the ODP Site 801B Section, west Pacific. "jointly worked" Reviewed

    Yang, Q, Matsuoka, A

    Science Reports of Niigata University, Series E (Geology)   12   29 - 49   1997.3

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  • Middle Jurassic radiolarians from the basal sediments at DSDP Site 534, Blake Bahama Basin, Northern Atlantic Reviewed

    MATSUOKA, A, BAUMGARTNER, P.O

    News of Osaka Micropaleontologists   Special Volume No. 10   183 - 191   1997.2

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  • Correlation between the Sambagawa metamorphic rocks and non-metamorphic accretionary complexes based on paleontological data

    78 - 86   1996.12

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  • Vallupusテリトリー(ジュラ紀放散虫地理区)と東アジアの中生代テクトニクス

    松岡 篤

    月刊地球   18 ( 11 )   754 - 758   1996.11

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  • Paleozoic-Mesozoic paleobiogeography and tectonics in East Asia "jointly worked"

    Tazawa, J, Matsuoka, A

    Earth Monthly   18 ( 11 )   713 - 717   1996.11

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  • Mesozoic radiolarians and radiolarian-bearing sequences in the circum-Pacific regions: A report of the symposium 'Radiolarians and Orogenic Belts'

    Atsushi Matsuoka, Yoshiaki Aita, Munasri, Koji Wakta, Gaoping Shen, Hiroshi Ujiié, Katsuo Sashida, Valentina S. Vishnevskaya, Nikita Y. Bragin, Fabrice Cordey

    Island Arc   5 ( 2 )   203 - 213   1996

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    This paper contains extended abstracts of the seven papers presented at the symposium 'Radiolarians and Orogenic Belts' held at the seventh meeting of the International Association of Radiolarian Paleontologists (INTERRAD). Important results of the symposium include the following: (1) Upper Paleozoic and Mesozoic cherts are widely distributed within accretionary complexes in the circum-Pacific orogenic belt. Radiolarian dating reveals that long durations of chert sedimentation in a pelagic environment are recorded on both sides of Pacific-rim accretionary complexes (e.g. New Zealand, Japan, Russian Far East, Canadian Cordillera). (2) Triassic radiolarian faunas from New Zealand and the Omolon Massif, northeast Siberia are similar in composition and are characterized by the absence of typical Tethyan elements. This suggests that radiolarian faunal provincialism may have been established as early as the Triassic. High-latitude radiolarian taxa exhibit a bi-polar distribution pattern. (3) The Lower Triassic interval in chert dominant pelagic sequences is mechanically weaker than other levels and acted as a décollement in accretionary events. This lithologic contrast in physical property is considered to reflect radiolarian evolution, such as the end-Permian mass extinction.

    DOI: 10.1111/j.1440-1738.1996.tb00026.x

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  • Late Jurassic tropical Radiolaria: Vallupus and its related forms

    Atsushi Matsuoka

    Palaeogeography, Palaeoclimatology, Palaeoecology   119 ( 3-4 )   359 - 369   1996

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    The Vallupinae is a radiolarian subfamily whose range is restricted to the Late Jurassic and the acme in the latest Jurassic (Tithonian). Species of the subfamily (Vallupus group) are found in low- and middle-latitudes of the western Pacific, East Asia, North-Central-South America, and Mediterranean regions. Available paleomagnetic data suggest that Vallupus group-bearing rocks in these localities accumulated within 25° of the Jurassic paleoequator. Seawater temperature is considered to be the major factor controlling the distribution of the Vallupus group. Warm seawater temperatures could be favourable to the propagation of the group. The Vallupus territory is proposed as a water mass inhabited by the Vallupus group. It occupied tropical surface waters from the low-latitude part of the Panthalassa to Tethys. Some Vallupus group-bearing rocks in the Circum-Pacific orogenic belt have been translated from low-latitude depositional sites to higher locations by lateral plate movements. Most Upper Jurassic strata in Japan accumulated outside the Vallupus territory. This means that the Vallupus group cannot be utilized for Upper Jurassic radiolarian zonal correlations between Japan and other regions. However, the rapid speciation of the Vallupus group has a high potential to produce a fine biostratigraphic framework for the Upper Jurassic within the Vallupus territory. © 1995 Elsevier Science B.V. All rights reserved.

    DOI: 10.1016/0031-0182(95)00018-6

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  • 六甲山地の断層系と1995年兵庫県南部地震における断層変位

    松岡 篤

    シンポジウム「阪神・淡路大震災と地質環境」論文集   75 - 78   1995.12

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  • Radiolaria-based Jurassic/Cretaceous boundary in Japan.

    Matsuoka, A

    Proc. 15th International Symposium of Kyunpook National University   219 - 232   1995.12

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  • Jurassic and Lower Cretaceous radiolarian zonation in Japan and in the western Pacific

    Atsushi Matsuoka

    Island Arc   4 ( 2 )   140 - 153   1995

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    Abstract A radiolarian zonal scheme for the entire Jurassic and Lower Cretaceous using biostratigraphic data from both Japanese Island sections and the western Pacific seafloor is documented. The zonation is applicable to low and middle paleolatitude portions of the Paleo‐Pacific ocean. Radiolarian bio‐events such as the evolutionary first appearance biohorizon, first occurrence biohorizon, and last occurrence biohorizon were used to define zones. The 11 zones proposed are, in ascending order, Parahsuum simplum, Trillus elkhornensis, Laxtorum(?) jurassicum, Tricolocapsa plicarum, Tricolocapsa conexa, Stylocapsa(?) spiralis, Hsuum maxwelli, Pseudodictyomitra primitiva, Pseudodictyomitra carpatica, Cecrops sep‐temporatus, and Acanthocircus carinatus zones. Preliminary age assignments for these zones are presented. Copyright © 1995, Wiley Blackwell. All rights reserved

    DOI: 10.1111/j.1440-1738.1995.tb00138.x

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  • Radiolarian catalogue and systematics of Middle Jurassic to Early Cretaceous Tethyan genera and species.

    Baumgartner, P.O, Jud, R, Gorican, S, O'Dogherty, L, Dumitrica, P, Danelian, T, Urquart, E, Matsuoka, A, Kito, N, De Wever, P, Marcucci, M, Steiger, T, Widz, D

    INTERRAD Jurassic-Cretaceous Working Group. Middle Jurassic to Lower Cretaceous Radiolaria of Tethys: Occurrences, Systematics, Biochronology. Memoires de Geologie (Lausanne)   ( 23 )   37 - 685   1995

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  • Middle Jurassic-middle Lower Cretaceous radiolarian zonation in Japan and Western pacific, and age assignments based on the Unitary Associations Method.

    Matsuoka, A

    INTERRAD Jurassic-Cretaceous Working Group. Middle Jurassic to Lower CretaceousRadiolaria of Tethys: Occurrences, Systematics, Biochronology. Memoires de Geologie (Lausanne)   ( 23 )   1049 - 1057   1995

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  • Middle Jurassic to Early Cretaceous Radiolarian Occurrences in Japan and the Western Pacific (ODP Sites 800-801).

    Matsuoka, A

    INTERRAD Jurassic-Cretaceous Working Group. Middle Jurassic to Lower Cretaceous Radiolaria of Tethys: Occurrences, Systematics, Biochronology. Memoires de Geologie (Lausanne)   ( 23 )   937 - 966   1995

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  • Middle Jurassic to Early Cretaceous radiolarian biochronology of Tethys based on Unitary Associations.

    Baumgartner, P.O, Bartolini, A, Carter, E.S, Conti, M, Cortese, G, Danelian, T, De Wever, P, Dumitrica, P, Dumitrica-Jud, R, Gorican, S, Guex, J, Hull, D.M, Kito, N, Marcucci, M, Matsuoka, A, Murchey, B, O'Dogherty, L, Savary, J, Vishnevskaya, V, Widz, D, Yao, A

    INTERRAD Jurassic-Cretaceous Working Group. Middle Jurassic to Lower CretaceousRadiolaria of Tethys: Occurrences, Systematics, Biochronology. Memoires de Geologie (Lausanne)   ( 23 )   1013 - 1048   1995

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  • New radiolarian data from DSDP Site 534, Blake Bahama Basin, Central Northern Atlantic.

    Baumgartner, P.O, Matsuoka, A

    INTERRAD Jurassic-Cretaceous Working Group. Middle Jurassic to Lower Cretaceous Radiolaria of Tethys: Occurrences, Systematics, Biochronology. Memoires de Geologie (Lausanne)   ( 23 )   709 - 715   1995

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  • 太平洋プレート上のジュラ・白亜紀海山-- チャート層序,古地磁気及び表層堆積物中の裂か群--マリアナ海溝海側斜面における「しんかい6500」第181潜航報告

    小川勇二郎, 藤岡換太郎, 押田 淳, 西村はるみ, 川田多加美, 松岡 篤, 指田勝男, 金松敏也, 伊藤 孝

    JAMSTEC深海研究   ( 10 )   123 - 151   1994.12

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  • 平板状スプメラリア(放散虫)のアクソフラジェルムと殻にみられるその通過孔

    松岡 篤

    化石   56   1 - 8   1994.6

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  • 新潟県佐渡島北東部鷲崎地域の先第三系より三畳紀後期放散虫化石の発見 Reviewed

    板坂孝司, 松岡 篤, 田沢純一

    地質学雑誌   100 ( 5 )   368 - 370   1994.5

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    DOI: 10.5575/geosoc.100.368

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  • 紀伊山地中央部の中・古生界(その5)-新子地域-

    大和大峯研究グループ

    地球科学   48 ( 2 )   103 - 117   1994.3

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  • Triassic-Jurassic radiolarian-bearing sequences in the Mino Terrane, central Japan.

    Matsuoka, A, Hori, R, Kuwahara, K, Hiraishi, M, Yao, A, Ezaki, Y

    19 - 61   1994

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  • Localities and biostratigraphy of Jurassic Radiolaria in Japan.

    Matsuoka, A

    Micropaleontology Press (New York), Micropaleontology Spec. Publ.   ( 6 )   153 - 160   1993.12

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  • カリブ海の表層海水から採取した放散虫の生体観察

    松岡 篤

    大阪微化石研究会誌   特別号 ( 9 )   349 - 363   1993.12

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  • 放散虫の飼育実験から何がわかるのか Reviewed

    松岡 篤

    月刊地球   15 ( 9 )   572 - 577   1993.9

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  • 沖縄県瀬底島周辺海域の現生放散虫

    松岡 篤

    化石   54   1 - 9   1993.6

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  • Jurassic and Early Cretaceous radiolaria from Leg 129, Sites 800 and 801, Western Pacific Ocean

    Matsuoka, A

    Proceedings of the Ocean Drilling Program, Scientific Results   129   203 - 220   1992.12

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  • 西太平洋のジュラ紀海洋地殻

    松岡 篤

    月刊地球   号外 ( 6 )   258 - 263   1992.12

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  • 放散虫と共生生物の観察-平板状のSpumellarida目について-

    松岡 篤

    化石   ( 53 )   20 - 28   1992.11

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  • JURASSIC-EARLY CRETACEOUS TECTONIC EVOLUTION OF THE SOUTHERN CHICHIBU TERRANE, SOUTHWEST JAPAN

    A MATSUOKA

    PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY   96 ( 1-2 )   71 - 88   1992.10

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    The Southern Chichibu terrane fringes the southern margin of the Jurassic-Early Cretaceous accretionary complex of southwest Japan. Two subterranes, the Togano subterrane in the north and Sambosan subterrane to the south, are recognized by examination of the common features of the terrane. They are juxtaposed throughout the terrane from western Kyushu to the Kanto Mountains a distance of over 1000 km. The geology of the Sakawa area, central Shikoku, is described in detail to show an example of the terrane. The geology around Tsukumi in eastern Kyushu and Okutama in the Kanto Mountains is introduced to emphasize the common features of this terrane.
    The Togano subterrane is composed of predominantly Triassic-Jurassic chert-clastic sequences associated with subordinate Jurassic olistostromal sequences and Upper Jurassic-Lower Cretaceous limestone-bearing clastic sequences. The chert-clastic sequences show an upward-coarsening sequence which reflects landward drift of the sea floor from a pelagic realm towards a trench. The olistostromal sequence contains abundant upper Paleozoic blocks. This subterrane is characterized by a south-vergent imbricate structure and south-younging polarity of the chert-clastic sequences.
    The Sambosan subterrane consists of mainly Upper Jurassic-Lower Cretaceous olistostromal sequences associated with Upper Jurassic-Lower Cretaceous limestone-bearing clastic sequences. The olistostromal sequence includes abundant Triassic-Jurassic chert blocks and Triassic limestone blocks accompanied by greenstones. The limestone-bearing clastic sequences of both subterranes are regarded as shelf or inner-trench slope sediments deposited on the chert-clastic and olistostromal sequences.
    Two major stages of tectonic development are discriminated. The Togano subterrane was formed by successive offscrape-accretion mainly during the Middle to Late Jurassic. The Sambosan subterrane was constructed by collision-accretion of seamounts mainly during the Late Jurassic to Early Cretaceous. The difference in the tectonic processes is considered to relate to topography of subducting oceanic plate; an oceanic plate with an abyssal plain for the Togano subterrane and an oceanic plate with seamounts for the Sambosan subterrane.

    DOI: 10.1016/0031-0182(92)90060-I

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  • 放散虫の生態観察と成長記録 -Dictyocoryne truncatumを例として-

    松岡 篤

    漂石 真鍋鶴松先生遺稿集・追悼集   67 - 76   1992.10

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  • SKELETAL GROWTH OF A SPONGIOSE RADIOLARIAN DICTYOCORYNE-TRUNCATUM IN LABORATORY CULTURE Reviewed

    A MATSUOKA

    MARINE MICROPALEONTOLOGY   19 ( 4 )   287 - 297   1992.8

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    The stages of skeletal growth of the radiolarian Dictyocoryne truncatum were observed using scanning electron and light microscopy. Four growth stages were recognized through comparison of laboratory-grown individuals with various sized skeletons which were collected by plankton tows near Barbados. Skeletal size is expressed as test height, which is the largest value among the three dimensions between a base line and arm apex of a trianglar skeleton. The early stage (stage 1), with a maximum height of less than approximately 120 mum, is a uniformly spongiose, triangular skeleton lacking arms and a patagium. The next stage (stage 2 ) is a triangular skeleton with slightly concave sides of ca. 120-200 mum size with three arms and a lace-like patagium. Further accretion of silica on the patagium conceals its lace-like structure, making a skeleton (stage 3: ca. 200-280 mum) with a more uniformly spongiose patagium. The mature stage (stage 4) with a maximum height more than ca. 280 mum is a triangular skeleton with convex sides, resulting from an outward growth of the patagium. Additional maturation produces an accretion of spongiose silica on the central part of the skeleton, forming a thickly biconvex skeleton in transverse section. One hundred and one individuals of D. truncatum were cultured in the laboratory at 28-degrees-C, 35 parts per thousand salinity and 165 muE/m2/s light intensity, with maximum and mean longevity of 37 and 6.4 days, respectively. The mean growth of 57 specimens which grew in the laboratory culture was 24.7 mum, with a maximum of 95 mum. The initial size of cultured specimens ranged from 103 to 325 mum, covering all of the four growth stages. Some specimens grew from one stage to the next stage changing skeletal morphology. The mean growth rate of four specimens which grew from stage 3 to 4 in laboratory culture was 5.4 mum/day (range 4.5-6.5 mum/day). Sporadic growth patterns exhibiting periods of rapid growth (15-20 mum per day) punctuated by intervals of little or no growth were observed in some cultured specimens. The sporadic growth may be related to a physiological rhythm of the organisms rather than environmental factors. The silica-depositing capacity is related largely to the vitality of the organisms. Discolored specimens and specimens with weakly extended axopodia showed no skeletal growth.

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  • EXPERIMENTAL AND OBSERVATIONAL STUDIES OF RADIOLARIAN PHYSIOLOGICAL ECOLOGY .5. TEMPERATURE AND SALINITY TOLERANCE OF DICTYOCORYNE-TRUNCATUM Reviewed

    A MATSUOKA, OR ANDERSON

    MARINE MICROPALEONTOLOGY   19 ( 4 )   299 - 313   1992.8

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    The longevity and skeletal growth of Dictyocoryne truncatum, collected from surface waters near Barbados, were assessed in laboratory culture in relation to variations in temperature and salinity. The range of longevities for groups of organisms collected at different times, but maintained at 28-degrees-C and 35.0 parts per thousand salinity, exhibited a wide fluctuation (1-2 to 5-37 days). The amount of growth also showed a wide variation among the groups since it was generally proportional to the longevity. The causes of the variation in longevity and growth are not known, but we hypothesize that a combination of genetic variability and physical and biological factors intrinsic to the culture conditions produced the variability.
    D. truncatum showed a narrow temperature range for skeletal growth with an optimum in our culture conditions at about 28-degrees-C. Temperatures over 32-degrees-C or under 21-degrees-C suppressed skeletal growth. D. truncatum has a much wider temperature tolerance for survival than for growth. Longevity at temperatures as low as 15-degrees-C was comparable to that at 28-degrees-C. This indicates that D. truncatum can endure periods of relatively low temperatures. This may have survival advantage by conferring resistance to lower temperatures at great depths in the water column or during intrusion of colder water masses into warmer surface water regimes, but we have presently no evidence of their reproductive capacity at these lower temperatures. These results are consistent with a theory that D. truncatum is largely a surface-dwelling species surviving optimally in warmer water that supports optimum skeletal growth and maturation. The tolerance of cooler water, however, may also reflect biological adaptations related to variations in habitat during the reproductive cycle. Mature organisms may sink and release reproductive swarmers at greater depths in a water column, judging from the observation that mature individuals in culture withdrew their axopodia prior to swarmer release and settled to the bottom of culture vessels. The low temperature tolerance may also permit survival of juvenile organisms until they ascend into more warm surface water strata.
    Cultured D. truncatum has a wide growth and survival tolerance for variations in salinity. Mean growth and longevities were comparable at salinities of 27 parts per thousand and 35.0 parts per thousand. A broad tolerance for variations in salinity can enhance survival at locations where wide variations in salinity occur regularly as happens near Barbados where the surface water is diluted by river outflows. The low salinity tolerance is also consistent with the interpretation that D. truncatum dwells in near-surface water in low latitude, open ocean locations.

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  • 日本のジュラ紀Nassellariaの多様性

    松岡 篤

    大阪微化石研究会誌特別号   ( 8 )   63 - 66   1992.8

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    File: 38_Matsuoka_1992f_NOM_J.pdf

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  • 紀伊山地中央部の中・古生界(その4)-高原川地域- Reviewed

    大和大峯研究グループ

    地球科学   46 ( 3 )   185 - 198   1992.5

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    DOI: 10.15080/agcjchikyukagaku.46.3_185

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  • ENDOCYTOPLASMIC MICROALGAE AND BACTEROIDS WITHIN THE CENTRAL CAPSULE OF THE RADIOLARIAN DICTYOCORYNE-TRUNCATUM

    OR ANDERSON, A MATSUOKA

    SYMBIOSIS   12 ( 3 )   237 - 247   1992

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    Micro-algae (c. 2.5 to 3.5 mum wide x3.8 to 4.5 mum long) occur abundantly within perialgal vacuoles in the intracapsular cytoplasm of the radiolarian Dictyocoryne truncatum, a triangular-shaped, spongiose skeletal radiolarian. The fine structure of the microalgae resembles that of yellow-brown pigmented symbionts observed in larger spongiose skeletal radiolaria of the spongodrymid type. The density of microalgae in a typical ultrathin section is c. 4/100 mum2. Bacteroids (0.2x0.5 mum) are present throughout the intracapsular cytoplasm. There is no evidence of a vacuolar membrane enclosing the bacteroids, but each is surrounded by an electron lucent zone. The central capsule of radiolaria contains the nucleus and cytoplasmic organelles and is bounded by a capsular wall. Previously, algae associated with radiolaria have been observed in the extracapsulum. The occurrence of intracapsular microalgae in D. truncatum is of interest since this indicates that the intracapsular cytoplasm, previously thought to be largely specialized for metabolism, storage of reserve substances and production of reproductive swarmers, can also be a site for host-algal interactions.

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  • Middle Jurassic Radiolarians from the Western Pacific.

    Matsuoka, A

    Saito Ho-on Kai Spec. Publ.   3   163 - 173   1991.12

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  • Early Jurassic Radiolarians from the Nanjo Massif in the Mino Terrane, central Japan. Part 1. Tricolocapsa, Stichocapsa, and Minocapsa n. gen. Reviewed

    Matsuoka, A

    Transactions and Proceedings of the Paleontological Society of Japan New Series   161   720 - 738   1991.4

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  • Southern Chichibu Terrane."jointly worked"

    Matsuoka, A, Yao, A

    Pre-Cretaceous Terranes of Japan, Publication of IGCP Project 224, Osaka   203 - 216   1990.12

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  • OCEAN DRILLING PROGRAM, LEG-129 - JURASSIC OCEANIC-CRUST AND SEDIMENTS IN THE PACIFIC, AT LAST

    ODP Leg, Shipboard Scientific Party

    GEOTIMES   35 ( 6 )   25 - 26   1990.6

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  • OCEAN DRILLING PROGRAM - ANCIENT CRUST ON PACIFIC PLATE

    Leg, Shipboard Scientific Party

    NATURE   345 ( 6271 )   112 - 112   1990.5

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  • 北部北上地山田老帯槙木沢層からのジュラ紀中世放散虫化石の産出 Reviewed

    松岡 篤, 大路樹生

    地質学雑誌   96 ( 3 )   239 - 241   1990.3

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    DOI: 10.5575/geosoc.96.239

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  • ジュラ紀テレーンをつなぐ鍵 -チャート・砕屑岩シークェンス

    松岡 篤

    構造地質(構造地質研究会誌)   34   135 - 144   1989.12

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  • 相馬中村層群小山田層(最下部白亜系)からの放散虫化石

    松岡 篤

    化石   46   11 - 16   1989.6

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  • 紀伊山地中央部の中・古生界(その3)-御吉野地域- Reviewed

    大和大峯研究グループ

    地球科学   43 ( 3 )   119 - 128   1989.5

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    DOI: 10.15080/agcjchikyukagaku.43.3_119

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  • First appearance biohorizon of Tricolocapsa conexa within Jurassic siliceous mudstone sequences of the Kamiaso area in the Mino Terrane, central Japan - a correlation of radiolarian zones of the Middle Jurassic. Reviewed

    Matsuoka, A

    Journal of the Geological Society of Japan   94 ( 8 )   583 - 590   1988.8

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    DOI: 10.5575/geosoc.94.583

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  • 北部北上帯(狭義)よりジュラ紀古世放散虫化石の発見 Reviewed

    松岡 篤

    地球科学   42 ( 2 )   104 - 106   1988.3

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    DOI: 10.15080/agcjchikyukagaku.42.2_104

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  • 青森県尻屋層群の放散虫年代

    松岡 篤

    化石   42   7 - 13   1987.5

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  • A NEWLY PROPOSED RADIOLARIAN ZONATION FOR THE JURASSIC OF JAPAN Reviewed

    A MATSUOKA, A YAO

    MARINE MICROPALEONTOLOGY   11 ( 1-3 )   91 - 106   1986.11

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  • ジュラ紀白亜紀境界付近における放散虫化石群の変化(予察).-とくに多節Nassellariaについて-.

    松岡 篤

    化石   40   1 - 15   1986.6

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  • 美濃帯上麻生地域の飛水峡セクションにおけるTricolocapsa属2種の層位分布.

    松岡 篤

    大阪微化石研究会誌特別号   7   59 - 62   1986.5

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  • 大分県津久見地域の秩父累帯南帯の中生層.

    松岡 篤

    大阪微化石研究会誌特別号   7   219 - 223   1986.5

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  • Tricolocapsa yaoi Assemblage (Late Jurassic Radiolarians) from the Togano Group in Southwest Japan.

    Matsuoka, A

    Journal of Geosciences Osaka City University   29   101 - 115   1986.3

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  • 高知県吾川村・仁淀地域の秩父累帯北帯

    波田重煕, 石井健一, 松岡 篤, 伊沢尚美

    MRT, Newsletter   1   37 - 42   1985.12

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  • 高知県佐川地域秩父累帯中帯南部の中部ジュラ系毛田層 Reviewed

    松岡 篤

    地質学雑誌   91 ( 6 )   411 - 420   1985.6

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    DOI: 10.5575/geosoc.91.411

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  • Latest Jurassic Radiolarians from the Torinosu Group in Southwest Japan."jointly worked"

    Matsuoka, A, Yao, A

    Journal of Geosciences Osaka City University   28   125 - 145   1985.3

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  • 高知県西部秩父累帯南帯の斗賀野層群 Reviewed

    松岡 篤

    地質学雑誌   90 ( 7 )   455 - 477   1984.7

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    DOI: 10.5575/geosoc.90.455

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  • Late Jurassic Four-Segmented Nassellarians (Radiolaria) from Shikoku, Japan.

    Matsuoka, A

    Journal of Geosciences Osaka City University   27   143 - 153   1984.3

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  • 高知県秩父累帯南帯のトリアス・ジュラ系中にみられるチャート層と砕屑岩層との整合関係 Reviewed

    松岡 篤

    地質学雑誌   89 ( 7 )   407 - 410   1983.7

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    DOI: 10.5575/geosoc.89.407

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  • Middle and Late Jurassic radiolarian biostratigraphy in the Sakawa and adjacent areas, Shikoku, southwest Japan.

    Matsuoka, A

    Journal of Geosciences Osaka City University   26   1 - 48   1983.3

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  • 高知県佐川・仁淀地域における中・上部ジュラ系の放散虫化石層序

    松岡 篤

    大阪微化石研究会誌特別号   5   237 - 253   1982.12

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  • 西南日本のトリアス紀・ジュラ紀放散虫化石群集

    八尾 昭, 松岡 篤, 中谷登代治

    大阪微化石研究会誌特別号   5   27 - 43   1982.12

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  • Jurassic two-segmented Nassellarians (Radiolaria) from Shikoku, Japan.

    Matsuoka, A

    Journal of Geosciences Osaka City University   25   71 - 86   1982.3

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  • <Bull. Natn. Sci. Mus., Tokyo>The Chichibu Belt and the Shimanto Belt in the Central Part of the Kii Mountains, Southwest Japan

    大和大峰研究グル-プ, 新 一馬, 荒金 孝明, 伊熊 俊幸, 磯崎 行雄, 伊藤 岳彦, 岩橋 豊彦, 江尻 祥晃, 奥田 尚, 久世 浩, 栗本 史雄, 国分 みゆき, 佐藤 浩一, 杉田 福松, 竹内 靖夫, 竹花 康夫, 但馬 達雄, 徳永 桂子, 中尾 勝博, 中谷 登代治, 西原 ちさと, 久本 大介, 藤塚 譲二, 前島 渉, 前山 博美, 政岡 邦夫, 益田 晴恵, 舛屋 直, 松岡 篤, 松岡 数充, 松田 哲夫, 松田 均, 南浦 育弘, 八尾 昭, 山口 理佐, 山本 典子, 渡辺 正巳

    Bulletin of the National Science Museum Ser. C Geology & Paleontology   7 ( 3 )   p119 - 127   1981.9

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    There are two lithologic units in strata in the central area of the Kii Mountains. One of them belongs to the Chichibu Belt and is subdivided into three formations : B, C and D in ascending order. The other unit of Cretaceous in age is a member of the Shimanto Belt. Besides them, there is O Formation exclusively found between the two units. The B Formation is composed of mudstone, chert and large limestone bodies accompanied with greenstones. The limestone bodies contain Late Triassic conodonts, and the mudstone rarely yields Jurassic radiolarians. The C Formation is made up of thick chert beds, intercalated with layers of mudstone, sandstone, acidic tuff, limestone and greenstones. Late Paleozoic and Mesozoic fossils are found sporadically in this formation. The D Formation is characterized by conglomerate containing abundant pebbles and cobbles of limestone. The O Formation consists largely of mudstone with subordinate sandstone. The constituent of the formation is a chaotic sediment involving blocks rich in dimensional and lithological diversity, yielding fossils of various ages. The Cretaceous strata in the Shimanto Belt comprise sand- and mud-abundant portions. In each mud-abundant portion are a few horizons involving greenstones, chert and acidic tuff. Among them, the siliceous parts yield Cretaceous radiolarians. Such juxtaposition of rocks of different ages as shown in the B and C formations is interpreted as the product of tectonic and/or sedimentary rearrangement. From the lithofacies and fossil contents, the formation of the chaotic part of the O Formation was due to mingling during and after sedimentary processes. The B, C and D formations, gently dipping north to northeast, overlie structurally the Cretaceous strata and partly the O Formation. The Cretaceous strata dipping 40°to 60°northwest show recurrence of the muddy portions. The B or C formation and the Cretaceous strata or the O Formation are in fault contact with each other. This fault having gentle dip corresponds to the Butsuzo Tectonic Line. The Cretaceous strata in the Shimanto Belt may be in fault contact directly with the Sanbagawa metamorphics in western half of the area without the B, C and D formations or the Chichibu Belt.

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  • Note on Pravitoceras sigmoidale Yabe (Cretaceous Heteromorph Ammonite) Reviewed

    Matsumoto, T, Morozumi, Y, Bando, Y, Hashimoto, H, Matsuoka, A

    Trans. Proc. Palaeont. Soc. Japan, N. S.   ( 123 )   168 - 178   1981

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  • 紀伊山地中央部の中・古生界(その2)-大迫地域-

    大和大峯研究グループ

    地球科学   33 ( 6 )   339 - 352   1979.11

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  • 四国四万十累層群中に発見されたトリアス紀石灰岩体 Reviewed

    大和大峯研究グループ

    地球科学   33 ( 1 )   59 - 61   1979.1

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Books

  • The Geology of Japan.

    Kojima, S, Hayasaka, Y, Hiroi, Y, Matsuoka, A, Sano, H, Sugamori, Y, Suzuki, N, Takemura, S, Tsujimori, T, Uchino, T( Role: Joint author ,  2b. Pre-Cretaceous accretionary complexes.)

    The Geological Society of London.  2016 

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    Responsible for pages:61-100   Language:English Book type:Scholarly book

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  • ジオパーク -大学から地域へ、そして世界へ- ブックレット新潟大学61

    松岡 篤, 栗原敏之( Role: Joint author)

    新潟日報事業社  2013.3 

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    Total pages:72   Language:Japanese Book type:Scholarly book

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  • かたち創造の百科事典

    岩田修一, 河口洋一郎, かたち創造の百科事典編集委員会( Role: Joint author)

    丸善出版  2013 

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    Responsible for pages:418-419   Language:Japanese Book type:Dictionary, encyclopedia

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  • 国立科学博物館叢書13 微化石 顕微鏡で見るプランクトン化石の世界. 5.5 宇宙プランクトン研究

    岸本直子, 松岡 篤, 木元克典, 吉野 隆, 石田直人, 栗原敏之( Role: Joint author ,  5.5 宇宙プランクトン研究)

    東海大学出版会  2012.8 

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  • 古生物学事典第2版

    日本古生物学会( Role: Edit)

    朝倉書店  2010.1 

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  • 図録 群馬県立自然史博物館第36回企画展「石になったものの記録」

    松岡 篤( Role: Joint author ,  放散虫・小さな芸術品)

    群馬県立自然史博物館  2010.1 

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  • アンモナイトと糸魚川ジオパーク

    松岡 篤, 栗原敏之( Role: Joint author)

    新潟大学理学部地質科学科  2009.1 

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  • 頭足類展 アンモナイトとその仲間たち

    松岡 篤( Role: Edit)

    新潟大学理学部地質科学科  2008.1 

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  • 進化・情報・かたち "生命知"のパースペクティブ

    松岡 篤( Role: Joint author)

    培風館  2006.12 

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  • Catalogue and systematics of Pliensbachian, Toarcian and Aalenian radiolarian genera and species

    Gorican, S, Carter, S.E, Dumitrica, P, Hori, S.R, De Wever, P, O'Dogherty, L, Matsuoka, A, Guex, J( Role: Joint author)

    Paleontoloski Institut Ivana Rakovca ZRC SAZU  2006.12 

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  • 新潟県の化石 化石から日本列島の歴史を考える

    田沢純一, 新川 公, 松岡 篤( Role: Joint author)

    新潟大学理学部地質科学科  2006.12 

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  • 古生物の科学第5巻 地球環境と生命史

    松岡 篤( Role: Joint author)

    朝倉書店  2004.12 

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  • 形の科学百科事典

    松岡 篤( Role: Joint author)

    朝倉書店  2004.12 

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  • かたちの事典

    松岡 篤( Role: Joint author)

    丸善  2003.12 

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  • 化石の研究法

    松岡 篤( Role: Joint author ,  2)

    共立出版  2000.12 

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  • 古生物の科学-第1巻 古生物の概説・系統分類

    北里 洋, 松岡 篤, 松岡数充( Role: Joint author ,  9)

    朝倉書店  1998.12 

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  • 新版 地学事典,地学団体研究会(編)

    松岡 篤, 田中啓策, 松岡 篤( Role: Joint author ,  斗賀野層群,三宝山層群,毛田層,鳥巣層群,鳥巣式石灰岩,七良谷層)

    平凡社  1996 

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MISC

  • Preface: The 15th Meeting of the International Association of Radiolarists (InterRad XV), 20 October-1 November, 2017, Niigata, Japan (Part 2)

    Atsushi Matsuoka, Toshiyuki Kurihara, Yoshihito Kamata, Atsushi Takemura

    PALEONTOLOGICAL RESEARCH   24 ( 2 )   87 - 88   2020.4

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    Language:English   Publisher:PALAEONTOLOGICAL SOC JAPAN  

    DOI: 10.2517/2020PR002

    Web of Science

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  • Radiolarian-inspired art design: Simplification and identification.

    Ito, T, Moria, Yokoyama, H, Ishiwata, S, Matsuoka, A

    Bulletin of the Geological Survey of Japan   71 ( 4 )   239 - 242   2020

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  • Preface: The 15th Meeting of the International Association of Radiolarists (InterRad XV), 20 October-1 November, 2017, Niigata, Japan

    Atsushi Matsuoka, Toshiyuki Kurihara, Yoshihito Kamata, Atsushi Takemura

    PALEONTOLOGICAL RESEARCH   23 ( 4 )   235 - 235   2019.10

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    DOI: 10.2517/2019PR014

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  • Editorial: Progress in radiolarian research during the last two decades Reviewed

    Matsuoka, A, Ito, T

    Science Reports of Niigata University (Geology)   32 ( Supplement )   i - iv   2017.10

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  • Report of the 12th symposium on Mesozoic Terrestrial Ecosystems, August 16-20, 2015, Shenyang, China. Reviewed

    Li,X, Yoshino,K, Sakai,Y, Matsuoka, A

    Science Reports of Niigata University (Geology)   31   99 - 110   2016.3

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  • Development and application of 3D-printed enlarged models for understanding the skeletal structure of radiolarians

    Fossils   98   29 - 38   2015.9

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  • Questionnaire survey on the Itoigawa Global Geopark and its applications to outreach activities

    29 ( 2 )   97 - 103   2014

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  • 東日本大震災被災地支援 化石のレプリカ作りi n相馬地方.

    田村 翼, 二上文彦, 八巻安夫, 荒 好, 松岡 篤

    相馬中村層群研究会誌 自然史研究   ( 3 )   13 - 27   2013.3

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  • 放散虫研究の最前線

    松岡 篤

    新潟県高等学校教育研究会理科部会 理科研究集録   ( 52 )   54 - 57   2013

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  • 445 Early Cretaceous flora from the Tetori Group in the Oguchi area, Hakusan City, Ishikawa Prefecture, Japan

    Sakai Yusuke, Sekido Shinji, Matsuoka Atsushi

    58   201 - 202   2012.8

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    Language:English   Publisher:Palynological Society of Japan  

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  • 放散虫化石 バルパス物語

    川端清司, 松岡 篤

    Nature Study   57 ( 8 )   2 - 4   2011.8

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  • Earth History of Asia.

    Matsuoka, A, Kurihara, T

    Abstracts of the International Symposium on Earth History of Asia.   1 - 62   2009.1

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  • 新潟大学理学部のサイエンスミュージアムの紹介

    松岡 篤

    新潟県高等学校教育会理科部会, 理科研究集録   48   61 - 64   2009.1

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  • 微化石のトランプ

    松岡 篤, 小林由枝

    形の科学会誌   26 ( 3 )   297 - 301   2009

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  • 飼育実験による浮遊性有孔虫の生態の研究 Reviewed

    木元克典, 松岡篤

    化石   79   1 - 2   2006.3

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  • Variation in skeletal morphology of Spongosphaera streptacantha Haeckel (Spherical Radiolaria)

    MATSUOKA Atsushi, KURIHARA Toshiyuki

    20 ( 2 )   171 - 172   2005.11

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  • Mesozoic-Paleozoic ocean eco-system inferred from skeletal morphology of radiolarians

    MATSUOKA Atsushi

    20 ( 1 )   34 - 35   2005.6

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  • Image database of radiolarian fauna in the Kuroshio watermass off Okinawa Island

    MATSUOKA Atsushi, SHINZAWA Midori, FUNAKAWA Satoshi

    19 ( 2 )   272 - 273   2004.11

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  • Ecological study of modern planktonic foraminifera by the combination of digital video recording and culturing techniques

    KIMOTO Katsunori, NAKAMURA Yuriko, MATSUOKA Atsushi

    19 ( 2 )   277 - 277   2004.11

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  • Shape and Information of Radiolaria-Quantitation of Information by Genome Profiling

    KOUDUKA Mariko, MATSUOKA Atsushi, NISHIGAKI Koichi

    19 ( 2 )   235 - 236   2004.11

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  • Species diversity of radiolarian fauna in the Kuroshio Current off Okinawa Island

    MATSUOKA Atsushi

    19 ( 1 )   38 - 38   2004.7

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  • Axopodial activities of spherical radiolaria

    MATSUOKA Atsushi

    18 ( 2 )   207 - 208   2003.10

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  • 現生放散虫研究の手法と研究機器 Reviewed

    松岡 篤

    化石   71   19 - 27   2002.12

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  • Banded structures in radiolarian chert

    MATSUOKA Atsushi

    17 ( 2 )   119 - 120   2002.10

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  • Skeletal morphology and feeding behavior of Radiolaria

    MATSUOKA Atsushi

    16 ( 2 )   131 - 132   2001.11

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  • 海洋性物質の起源と付加体

    宮下純夫, 松岡 篤

    新潟大学公開講座実施委員会編,生きている地球 -新潟から検証する日本列島の過去・現在・未来-,平成13年度 新潟大学テレビ公開講座 テキスト   30 - 40   2001

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    Language:Japanese   Publishing type:Lecture material (seminar, tutorial, course, lecture, etc.)  

    2001年11月10日放送

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  • The Malampaya Sound Group in the Calamian Islands, North Palawan Block (Philippines)

    Zamoras, L.R, Matsuoka, A

    The Journal of the Geological Society of Japan   107 ( 5 )   XI - XII   2001

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  • Preface

    MIYASHITA Sumio, ARAI Shoji, KIMINAMI Kazuo, MATSUOKA Atsushi

    52   1999.9

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  • Research progress in the Chichibu Composite Belt : Reports from western Shikoku

    Matsuoka Atsushi, Yamakita Satoshi, Sakakibara Masayuki, Hisada Kenichiro

    Journal of the Geological Society of Japan   104 ( 9 )   XXI - XXII   1998.9

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  • マリアナ海溝から得られた世界一保存のよい白亜紀初期の放散虫化石

    松岡 篤, 岡田 尚武, 小川 勇二郎, 藤岡 換太郎

    形の科学会報   12 ( 1 )   29 - 29   1997.6

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  • Aspects of Jurassic radiolarian biostratigraphic research in North America and notes on correllation.

    ( 2 )   169 - 176   1997

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  • どちらが古い? 太平洋と大西洋 -放散虫年代学からのアプローチ-

    松岡 篤

    形の科学会報   11 ( 1 )   22 - 23   1996.7

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  • Recent progress in Mesozoic radiolarian research and its bearing on accretion tectonics

    ( 1 )   1 - 6   1996

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  • テクトニクスと変成作用

    松岡篤

    原郁夫先生退官記念論文集   78 - 86   1996

  • 1995年兵庫県南部地震と断層変位

    松岡 篤

    形の科学会報   10 ( 2 )   52 - 53   1995.12

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  • 六甲山地の地質と1995年兵庫県南部地震における地盤変状

    松岡 篤

    形の科学会報   10 ( 1 )   24 - 25   1995.6

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  • 海山の衝突と付加体の成長-四国西端部の南部秩父テレーンを例として

    松岡篤

    日本地質学会第102年学術大会演旨   81   1995

  • ジュラ紀付加体の比較からみた西南日本の帯状配列

    松岡篤

    日本地質学会第101年学術大会演旨   172   1994

  • 高知県西部秩父累帯南帯斗賀野層群の地質学的・地球化学的研究

    林 博文, 鈴木尭士, 松岡 篤

    科学研究費補助金,一般研究(A)研究成果報告書(代表:鈴木 尭) 西南日本外帯に分布するオフィオライトとその形成メカニズム   42 - 52   1986

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  • 高知県佐川地域のジュラ紀放散虫化石群集

    松岡篤

    日本地質学会関西支部報   89   3 - 4   1981

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Presentations

  • A Review of Jurassic-Cretaceous transition sequences in Japan. International conference

    Matsuoka, A, Sano, S

    11th International Congress on the Jurassic System  2022.9 

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    Event date: 2022.8 - 2022.9

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Budapest   Country:Hungary  

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  • Pliensbachian (Early Jurassic) ammonoids from the Kuruma group around Mt. Kikuishi in Itoigawa, Niigata, central Japan. International conference

    Matsuoka, A, Nakada, K

    11th International Congress on the Jurassic System  2022.9 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Budapest   Country:Hungary  

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  • Jurassic-Cretaceous transition sequences in East Asia and the Pacific: Radiolarian markers around the J/K boundary. International conference

    Matsuoka, A

    11th International Cretaceous Symposium 2022  2022.8 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Warsaw   Country:Poland  

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  • InterRad 15以降の放散虫の社会認知

    松岡 篤

    第15回放散虫研究集会NOM京都大会  2022.7 

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    Event date: 2022.7

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  • 閉球状ナッセラリアの形態用語

    伊藤 剛, 松岡 篤

    第15回放散虫研究集会NOM京都大会,  2022.7 

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  • 新潟県佐渡市鷲崎地域に分布するチャートからの放散虫化石の産出

    漆山 凌, 松岡 篤

    第15回放散虫研究集会NOM京都大会  2022.7 

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    Event date: 2022.7

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  • 生層序対比マーカーの条件とジュラ・白亜系境界にかかわる放散虫マーカー候補

    松岡 篤

    日本古生物学会2022年年会  2022.7 

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    Event date: 2022.7

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  • 2022 年用の放散虫カレンダー

    松岡 篤, 冨田 雄太

    第91回形の科学シンポジウム  2021.11 

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  • 放散虫化石の探し方と観察の仕方

    松岡 篤

    第91回形の科学シンポジウム  2021.11 

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  • 太平洋―環太平洋地域における遠洋域,浅海域,陸域のジュラ・白亜系境界の広域対比と国際深海掘削計画

    松岡 篤, 黒田潤一郎, 田中えりか, 安川和孝

    日本地質学会第128年学術大会  2021.9 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン  

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  • 新潟県糸魚川市大所川流域に分布する下部ジュラ系来馬層群の砂岩組成の層位変化

    川尻啄真, 松岡 篤

    日本地質学会第128年学術大会  2021.9 

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    Language:Japanese   Presentation type:Poster presentation  

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  • 太平洋―アジア地域における遠洋域,浅海域, 陸域のジュラ・白亜系境界の広域対比に向けて

    松岡 篤

    日本古生物学会 2021 年年会  2021.7 

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    Language:Japanese   Presentation type:Poster presentation  

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  • ジュラ紀中世放散虫Unuma echinatus の詳細形態解析とUnuma 属の系統上の位置

    松岡 篤, 横山 隼

    日本古生物学会第170回例会  2021.2  日本古生物学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

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  • デジタルプラネタリウムによる放散虫3Dモデルの投影

    吉岡 翼, 竹中萌美, 松岡 篤, 岸本直子

    形の科学会第89回シンポジウム  2020.12  形の科学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

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  • ジュラ紀放散虫Unuma echinatusの形態的特徴

    松岡 篤

    形の科学会第89回シンポジウム  2020.12  形の科学会

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    Event date: 2020.12

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • Was the Jurassic–Cretaceous boundary a critical event for marine life in the pelagic Panthalassa? Invited International conference

    Matsuoka, A

    Japan Geoscience Union–American Geophysical Union Joint Meeting 2020, Virtual Meeting,  2020.7 

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    Language:English   Presentation type:Oral presentation (invited, special)  

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  • 糸魚川ジオパークにおけるフォッサマグナミュージアムと新潟大学との連携の10年 International conference

    茨木洋介, 竹之内 耕, 小河原孝彦, 小林 猛生, 松岡 篤

    Japan Geoscience Union–American Geophysical Union Joint Meeting 2020, Virtual Meeting  2020.7  日本地球惑星科学連合

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    Language:Japanese   Presentation type:Poster presentation  

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  • Outreach activities for radiolarian science since the InterRad 15 in Niigata, 2017Japan International conference

    Matsuoka, A

    Japan Geoscience Union–American Geophysical Union Joint Meeting 2020, Virtual Meeting  2020.7 

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    Event date: 2020.7

    Language:English   Presentation type:Poster presentation  

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  • Detailed stratigraphy around the Jurassic–Cretaceous boundary in the Bosso Valley section, central Italy and international correlation based on radiolarian biostratigraphy. International coauthorship International conference

    Matsuoka, A, Li, X, Chiari, M, Beritinelli, A

    Japan Geoscience Union–American Geophysical Union Joint Meeting 2020, Virtual Meeting  2020.7 

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    Event date: 2020.7

    Language:English   Presentation type:Oral presentation (general)  

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  • Permian radiolarians from chert distributed in the Hashidate area, Itoigawa City, Niigata Prefecture, central Japan. International conference

    Kurihara, T, Murakami, U, Matsuoka, A

    Japan Geoscience Union–American Geophysical Union Joint Meeting 2020, Virtual Meeting  2020.7 

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    Event date: 2020.7

    Language:English   Presentation type:Oral presentation (general)  

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  • InterRad 15以降の放散虫研究・教育・普及活動と将来展望

    松岡 篤

    形の科学会第88回シンポジウム  2019.11  形の科学会

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    Event date: 2019.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:深谷,埼玉工業大学   Country:Japan  

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  • 2020年用の放散虫カレンダー

    松岡 篤, 冨田雄太

    形の科学会第88回シンポジウム,  2019.11  形の科学会

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    Event date: 2019.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:深谷,埼玉工業大学   Country:Japan  

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  • Didymocyrtis属の骨格構造の幾何学的特徴

    吉野 隆, 松岡 篤, 岸本直子

    第14回放散虫研究集会 水戸大会  2019.11 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:水戸,水戸中央ビル   Country:Japan  

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  • InterRad 15以降の活動から放散虫研究の未来を展望する

    松岡 篤

    第14回放散虫研究集会 水戸大会  2019.11 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:水戸   Country:Japan  

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  • Updated radiolarian zonation for the Jurassic in Japan and the western Pacific: a framework for the oceanic plate stratigraphy of the Panthalassa. International conference

    Matsuoka, A, Ito, T

    3rd International Congress on Stratigraphy (STRATI 2019)  2019.7 

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    Event date: 2019.7

    Language:English   Presentation type:Poster presentation  

    Venue:Milano   Country:Italy  

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  • Towards a standard radiolarian zonation for the Mesozoic. International coauthorship International conference

    Goričan, Š, O'Dogherty, L, Baumgartner, P.O., Carter, E.S. Matsuoka A

    3rd International Congress on Stratigraphy (STRATI 2019)  2019.7 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Milano   Country:Italy  

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  • Stratigraphy around the Jurassic-Cretaceous boundary in the Bosso Valley section, Central Italy. International coauthorship International conference

    Chiari, M, Bertinelli, A, Matsuoka, A, Li, X

    3rd International Congress on Stratigraphy (STRATI 2019)  2019.7 

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    Language:English   Presentation type:Poster presentation  

    Venue:Milano   Country:Italy  

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  • Abundance and preservation of radiolarians across the Jurassic-Cretaceous (J/K) boundary in the Bosso Valley section, Central Italy. International coauthorship International conference

    Li, X, Matsuoka, A, Chiari, M, Bertinelli, A

    3rd International Congress on Stratigraphy (STRATI 2019)  2019.7 

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    Event date: 2019.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Milano   Country:Italy  

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  • Detailed lithostratigraphy and radiolarian biostratigraphy around the Jurassic-Cretaceous boundary in the Bosso Valley section, Central Italy. International coauthorship International conference

    Matsuoka, A, Li, X, Chiari, M., Bertinelli, A

    3rd International Congress on Stratigraphy (STRATI 2019)  2019.7 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Milano   Country:Italy  

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  • ジュラ・白亜紀境界付近における放散虫の多様性と系統進化

    松岡 篤

    日本古生物学会2019年年会  2019.6  日本古生物学会

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    Event date: 2019.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:静岡,静岡大学   Country:Japan  

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  • Radiolarian phylogeny around the Jurassic–Cretaceous boundary and radiolarian biostrtigraphy in the Bosso Valley section, central Italy. Invited International coauthorship International conference

    Matsuoka, A, O’Dogherty, L, Goričan, S, Baumgartner, P, O, Li, X, Chiari, M, Bertinelli, A

    XIVth Jurassica Conference & Workshop of the ICS Berriasian Group 2019  2019.6 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Bratislava   Country:Slovakia  

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  • Excellently–preserved earliest Cretaceous radiolarian fossils from the Marian Trench and their application to outreach activities: Calender and playing cards. International conference

    Matsuoka, A

    XIVth Jurassica Conference & Workshop of the ICS Berriasian Group 2019,  2019.6 

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    Language:English   Presentation type:Poster presentation  

    Venue:Bratislava   Country:Slovakia  

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  • 放散虫トランプの遊び方・学び方

    松岡 篤

    形の科学会第87回シンポジウム  2019.6  形の科学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:調布,東京慈恵会医科大学国領キャンパス   Country:Japan  

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  • Radiolarian faunas around the Jurassic-Cretaceous boundary in the Bosso Valley section, central Italy. International coauthorship International conference

    Matsuoka, A, Li, X, Chiari, M. Bertinelli, A

    Japan Geoscience Union Meeting 2019,  2019.5 

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    Event date: 2019.5

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

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  • The preservation of radiolarians across the Jurassic-Cretaceous (J/K) boundary in the Bosso Valley section, Central Italy. International coauthorship International conference

    Li, X, Matsuoka, A, Bertinelli, A, Chiari, M

    Japan Geoscience Union Meeting 2019  2019.5 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

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  • Triassic marine Os isotope record reconstructed from a pelagic chert succession, Sakahogi section, Mino Belt, southwest Japan. International conference

    Nozaki, T, Nikaido, T, Onoue, T, Takaya, Y, Sato, K, Kimura, J, Chang, Q, Yamashita, D, Sato, H, Suzuki, K, Kato, Y, Matsuoka, A

    Japan Geoscience Union Meeting 2019  2019.5 

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    Event date: 2019.5

    Presentation type:Oral presentation (general)  

    Country:Japan  

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  • Radiolarian phylogeny around the Jurassic–Cretaceous boundary International conference

    Matsuoka, A

    Japan Geoscience Union Meeting 2019  2019.5 

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    Language:English   Presentation type:Poster presentation  

    Country:Japan  

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  • 中生代放散虫VallupusテリトリーとTurbocapsula costataテリトリー

    松岡 篤・Li

    微古生物学リファレンスセンター研究集会つくば大会  2019.3 

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    Event date: 2019.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:つくば,筑波大学春日エリア  

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  • Bosso Valley セクション(イタリア中部)-ジュラ・白亜系境界GSSPの有力候補

    松岡 篤・Li, X, Chiari, M, Bertinelli, A

    日本古生物学会第168回例会  2019.1  日本古生物学会

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    Event date: 2019.1

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:小田原,神奈川県立生命の星地球博物館   Country:Japan  

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  • Catalogue of Tithonian–Berriasian radiolarians. International coauthorship International conference

    O’Dogherty, L, Goričan, S, Baumgartner, P, O, Matsuoka, A, Chiari, M

    JK2018 radiolarian presentations  2018.12 

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    Language:English  

    Venue:Geneve   Country:Switzerland  

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  • Panthalassan radiolarite versus pelagic carbonate in Intra-Pangaean basins during the Late Jurassic- Early Cretaceous transition – paleofertility and ocean circulation. International coauthorship International conference

    Baumgartner, P, O, Goričan, S, O’Dogherty, L, Matsuoka, A

    JK2018 radiolarian presentations  2018.12 

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    Event date: 2018.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Geneve   Country:Switzerland  

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  • Radiolarian phylogeny around the Jurassic–Cretaceous boundary and radiolarian occurrences in the Bosso Valley section, central Italy.

    Matsuoka, A, O’Dogherty, L, Goričan, S, Baumgartner, P, O, Li, X, Chiari, M, Bertinelli, A

    JK2018 radiolarian presentations,  2018.12 

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  • Correlation of low-latitude radiolarian-bearing pelagic lithofacies around the Jurassic–Cretaceous boundary. International coauthorship International conference

    O’Dogherty, L, Goričan, S, Baumgartner, P, O, Matsuoka, A, Chiari, M

    JK2018 radiolarian presentations  2018.12 

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    Language:English   Presentation type:Poster presentation  

    Venue:Geneve   Country:Switzerland  

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  • Detailed lithostratigraphy and radiolarian occurrences around the Jurassic–Cretaceous boundary in the Bosso Valley section, Central Italy. International coauthorship International conference

    Bertinelli, A.,Li, X, Chiari, M, Matsuoka, A

    JK2018 radiolarian presentations,  2018.12 

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    Language:English   Presentation type:Poster presentation  

    Venue:Geneve   Country:Switzerland  

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  • Stratigraphy around the Jurassic–Cretaceous boundary in the Bosso Valley Section (Umbria-Marche Apennines, Central Italy): Geological setting, historical review and current situation. International coauthorship International conference

    Chiari, M, Bertinelli, A, Li, X, Matsuoka, A

    JK2018 radiolarian presentations  2018.12 

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    Event date: 2018.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Geneve   Country:Switzerland  

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  • Well preserved radiolarians across the Jurassic-Cretaceous (J/K) boundary in the Bosso Valley section, Central Italy. International coauthorship International conference

    Li, X, Matsuoka, A, Bertinelli, A, Chiari, M, Wang, C

    JK2018 radiolarian presentations  2018.12 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Geneve   Country:Switzerland  

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  • ジュラ・白亜系境界のGSSP と放散虫の系統進化:イタリア中部のBosso Valley section における検討

    松岡 篤・Li, X, Chiari, M, Bertinelli, A

    形の科学会第86回シンポジウム  2018.11  形の科学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:千葉,千葉大学   Country:Japan  

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  • 2019年用の放散虫カレンダー

    松岡 篤, 大河内春香

    形の科学会第86回シンポジウム  2018.11  形の科学会

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    Language:Japanese   Presentation type:Poster presentation  

    Venue:千葉,千葉大学   Country:Japan  

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  • Radiolarian assemblage of Barremian to Aptian interval in the Tethys and the influence of the oceanic anoxic event (OAE) 1a. International coauthorship International conference

    Li, X, Matsuoka, A, Bertinelli, A, Chiari, M, Wang, C

    The 6th International Symposium of International Geoscience Programme IGCP Project 608  2018.11 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Khon Kaen-Kalasin   Country:Thailand  

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  • Searching for the non-marine Jurassic/Cretaceous boundary in northeastern China. International coauthorship International conference

    Li, G, Matsuoka, A

    The 6th International Symposium of International Geoscience Programme IGCP Project 608  2018.11 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Khon Kaen-Kalasin   Country:Thailand  

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  • Mesozoic radiolarian biochronology –current status and future directions. International coauthorship International conference

    Goričan, Š, O'Dogherty, L, Baumgartner, P. O, Carter, E. S, Matsuoka A

    5th International Paleontological Congress  2018.7 

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    Event date: 2018.7

    Language:English  

    Venue:Paris   Country:France  

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  • The Jurassic/Cretaceous boundary and phyletic analysis of radiolarian Loopus-Pseudodictyomitra and Vallupus lineages. International conference

    Matsuoka, A

    5th International Paleontological Congress  2018.7 

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    Language:English  

    Venue:Paris   Country:France  

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  • Dimorphism of the Permian Albaillellaria (Radiolaria): Morphologic characters and lineage. International coauthorship International conference

    Ito, T, Matsuoka, A, Feng, Q

    5th International Paleontological Congress  2018.7 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Paris,   Country:France  

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  • Growth models on siliceous skeletons of living Spumellaria (Radiolaria)

    HORI S. Rie, SHINKI Takenobu, IWAKIRI Akihiro, Matsuoka Atsushi, SUZUKI Noritoshi, OGANE Kaoru, Tsuji Akihiro

    Annual Meeting of the Geological Society of Japan  2016  The Geological Society of Japan

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    Event date: 2016

    Language:Japanese  

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  • Late Jurassic to Early Cretaceous and Late Paleocene Radiolarian from the Yarlung-Tsangpo suture zone, near Zhongba county, Southern Tibet

    Li Xin, Wang Chengshan, Li Yalin, Matsuoka Atsushi

    Science reports of Niigata University. (Geology)  2014.10 

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    Event date: 2014.10

    Language:English  

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  • 岐阜県高山市荘川地域における下部白亜系手取層群赤岩亜層群より産出した植物化石群集

    酒井佑輔, 寺田和雄, 松岡 篤

    日本古生物学会2014年年会  2014.6  日本古生物学会

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    Event date: 2014

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学総合研究博物館  

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  • 海洋性プランクトン骨格の幾何学および力学特性について

    岸本直子, 吉野隆, 石田直人, 松岡篤

    構造強度に関する講演会講演集  2013 

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    Event date: 2013

    Language:Japanese  

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  • 4) Unit division of the Chichibu Composite Belt from a view point of accretionary geology

    MATSUOKA A, YAMAKITA S, SAKAKIBARA M, HISADA K

    日本地質学会学術大会講演要旨  1998.3  The Geological Society of Japan

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    Event date: 1998.3

    Language:Japanese  

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  • 123 日本のジュラ系放散虫化石帯の年代

    八尾 昭, 松岡 篤, 堀 利栄

    日本地質学会学術大会講演要旨  1986.4  日本地質学会

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    Event date: 1986.4

    Language:Japanese  

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  • 中生代放散虫生物地理にかかわるVallupusテリトリーとTurbocapsula costataテリトリー International coauthorship

    松岡 篤, 李 鑫

    日本地質学会第126年学術大会  2019.9  日本地質学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:山口,山口大学吉田キャンパス   Country:Japan  

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  • あなたの町のRADIX(放散虫年代多様度指標)は?

    松岡 篤

    日本地質学会第125年学術大会  2018.9  日本地質学会

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    Language:Japanese   Presentation type:Poster presentation  

    Venue:札幌,北海道大学  

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  • 放散虫の進化史からみたジュラ・白亜系境界問題

    松岡 篤

    日本地質学会第125年学術大会  2018.9  日本地質学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:札幌,北海道大学  

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  • ジュラ・白亜系境界と放散虫の進化系統

    松岡 篤

    日本古生物学会2018年年会  2018.6  日本古生物学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東北大学青葉山北キャンパス  

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  • 中生代放散虫<i>Vallupus</i> 類の殻形態とその“機能”

    松岡 篤

    形の科学会第85回シンポジウム  2018.6  形の科学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東北大学青葉山東キャンパス  

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  • ペルム紀放散虫Albaillellariaにみられる二形性の形態的特徴

    伊藤 剛, 松岡 篤, 馮 慶来

    日本古生物学会2018年年会  2018.6  日本古生物学会

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    Language:Japanese   Presentation type:Poster presentation  

    Venue:東北大学青葉山北キャンパス  

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  • Proposal of Deep Sea Drilling for the Jurassic/Cretaceous boundary in the western Pacific. International conference

    Japan Geoscience Union Meetin 2018  2018.5 

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  • The Jurassic/Cretaceous boundary and phyletic analysis of radiolarian <i>Loopus-Pseudodictyomitra</i> lineage International conference

    Japan Geoscience Union Meetin 2018  2018.5 

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  • 地質多様性を示す一法 –放散虫年代指標(RADIX) International conference

    松岡 篤

    日本地球惑星科学連合2018年大会  2018.5 

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    Venue:千葉,幕張メッセ  

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  • Late Cretaceous radiolarian assemblages and U-Pb zircon ages of the Yezo Group in the Niikappu area, Hokkaido, Japan. International conference

    伊藤祐輝, 栗原敏之, 植田勇人, 松岡 篤

    日本地球惑星科学連合2018年大会  2018.5 

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    Venue:千葉,幕張メッセ  

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  • Radiolarian-based study on the fabric and the formation process of the Early Cretaceous mélange near Zhongba, Yarlung–Tsangpo suture zone, southern Tibet. International conference

    Li, X, Matsuoka, A, Li, Y, Wang, C

    日本地球惑星科学連合2018年大会  2018.5 

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    Venue:千葉,幕張メッセ  

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  • Stratigraphic potential of radiolarians for defining the Jurassic/Cretaceous Boundary: phylitic analysis in the western Pacific and eastern Tethys International conference

    Matsuoka, A

    International Congress on the Jurassic System  2018.2 

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    Venue:San Luis Potosí, Mexico.  

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  • 表か裏か? CT画像からみた平板形放散虫の形態解析

    椎野勇太, 栗原敏之, 一戸 凌, 岸本直子, 吉野 隆, 松岡 篤

    日本古生物学会第167回例会  2018.2  日本古生物学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:愛媛県松山市 愛媛大学城北キャンパス  

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  • 福井県大野市の手取層群貝皿層(中部ジュラ系)より産出するトリゴニア類

    酒井佑輔, 鹿澤優祐, 近藤康生, 松岡 篤

    日本古生物学会第167回例会  2018.2  日本古生物学会

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    Language:Japanese   Presentation type:Poster presentation  

    Venue:愛媛県松山市 愛媛大学城北キャンパス  

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  • Results of InterRad 15 in Niigata 2017

    2017.12 

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  • A growth model and strategy of forming siliceous skeletons of living Spumellaria (Radiolaria) International conference

    Hori, R S, Shinki, T, Iwakiri, A, Matsuoka, A, Suzuki, N, Ogane, K, Tuji, A

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Integrated mega- and micro- biostratigraphy of the Campanian–Maastrichtian Izumi Group, Southwest Japan–Application to the Songliao Basin– International conference

    Yoshino, K, Matsuoka, A, Wan, X

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • How to present diversity of geologic entities? – Proposal of Radiolarian age Diversity IndeX (RADIX) International conference

    Matsuoka, A

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Head or tail? Morphological analysis of the discoid spumellarian radiolarian <i>Dictyocoryne</i> International conference

    Shiino, Y, Kurihara, T, Ichinohe, R, Kishimoto, K, Yoshino, T, Matsuoka, A

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Phylogeny and spatial distribution of the early Cretaceous radiolarian <i>Turbocapsula</i> International conference

    Li,X, Matsuoka, A, Li, Y, Wang, C

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Newly discovered marine beds in the Lower Jurassic Kuruma Group in the Otari Village, Nagano Prefecture, Central Japan International conference

    Matsumoto, K, Matsuoka, A

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Lithostratigraphy and bivalve associations of the Lower Jurassic Niranohama Formation in the Hashiura area, South Kitakami Belt, Miyagi Prefecture, Northeast Japan International conference

    Sakata, R, Matsuoka, A

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Lithostratigraphy and biostratigraphy of the Tomizawa and Koyamada Formations in the Somanakamura Group, Northeast Japan — Jurassic–Cretaceous transition beds in the eastern margin of Asia International conference

    Tamura, T, Taketani, Y, Matsuoka, A

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Radiolarian-based oceanic plate stratigraphy of the melanges and subduction-accretion processes in the western sector of the Yarlung–Tsangpo suture zone, southern Tibet International conference

    Li, X, Matsuoka, A, Li, Y, Wang, C

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Late Silurian radiolarians from a conglomerate of a float block in Kotaki, Itoigawa, central Japan: Oldest fossil record in Niigata Prefecture International conference

    Ibaraki, Y, Ito, T, Kurihara, T, Hakoiwa, H, Matsuoka, A

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Development of Enlarged Skeleton Models of Radiolaria (with Hands-on Exhibition) International conference

    Teshima, Y, Nakagawa, T, Kimoto, K, Matsuoka, A

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Development of Enlarged Skeleton Models of Foraminifera (with Hands-on Exhibition) International conference

    Teshima, Y, Takagi, F, Hoshino, S, Watanabe, H, Matsuoka, A, Kimoto, K

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Origami Representation of the Cortical Shell Structures of radiolarian <i>Pantanellium</i> (with Hands-on Exhibition) International conference

    Yoshino, T, Matsuoka, A, Kishimoto, N, Ishida, N, Kurihara, T, Kimoto, K

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Retraction Force of Axial Projection of Multi-segmented Nassellarian <i>Eucyrtidium hexastichum</i> (Haeckel) International conference

    Yoshino, T, Matsuoka, A

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Late Jurassic radiolarians from Nadanhada Range of eastern Heilongjiang Province, NE China International conference

    Li, G, Matsuoka, A

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • Phylitic analysis of radiolarians for defining the Jurassic/Cretaceous boundary in the western Pacific and eastern Tethys International conference

    Matsuoka, A

    The 15th Meeting of the International Association of Radiolarists  2017.10 

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    Venue:Niigata, Japan.  

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  • 第15回国際放散虫研究集会で議論するジュラ・白亜系境界問題

    松岡 篤

    日本地質学会第124年学術大会  2017.9  日本地質学会

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    Venue:愛媛大学城北キャンパス(愛媛県松山市)  

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  • 放散虫をもちいた地質多様性の評価指標、放散虫年代多様度指標(RADIX)の地質図幅への適用

    松岡 篤, 伊藤 剛

    日本地質学会第124年学術大会  2017.9  日本地質学会

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    Venue:愛媛大学城北キャンパス(愛媛県松山市)  

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  • Stratigraphic potential of radiolarians for determining the Jurassic/Cretaceous boundary: evidence from pelagic sequences in the Pacific and Tethys International conference

    Matsuoka, A

    10<sup>th</sup> International Symposium on the Cretaceous  2017.8 

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    Venue:Vienna, Austria  

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  • Radiolarian assemblage of Barremian to Aptian interval in the Tethys and the influence of the oceanic anoxic event (OAE) 1a International conference

    Li, X, Matsuoka, A, Chiari, M, Bertinelli, A, Wang, C

    10<sup>th</sup> International Symposium on the Cretaceous  2017.8 

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    Venue:Vienna, Austria  

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  • Enlarged Skelton Models of Radiolaria

    2017.6 

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  • 放散虫の普及を考える ―「放散虫の木」構想

    松岡 篤

    第83回 形の科学シンポジウム  2017.6 

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    Venue:野々市市 金沢工業大学扇が丘キャンパス  

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  • Drag Force of Axial Projection of Radiolarian Eucyrtidium hexastichum (Haeckel)

    2017.6 

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  • 放散虫をもちいた地質多様性の評価指標(RADIX)の提案

    松岡 篤

    日本古生物学会2017年年会,  2017.6  日本古生物学会

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    Venue:北九州市 北九州市立自然史・歴史博物館  

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  • 福井県大野市上半原地域の手取層群上部より産出する前期白亜紀植物群(田茂谷植物群)の層位学的位置

    酒井佑輔, 松岡 篤

    日本古生物学会2017年年会,  2017.6  日本古生物学会

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    Venue:北九州市 北九州市立自然史・歴史博物館  

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  • nterRad 15 in Japan (22-17 October, 2017) and outreach items for radiolarians International conference

    2017.5 

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  • Radiolarian zonation of Barremian to Aptian interval and its constraint on oceanic anoxic event 1a (OAE 1a) International conference

    LI Xin, Matsuoka A

    日本地球惑星科学連合2017年大会  2017.5  日本地球惑星科学連合

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    Venue:幕張メッセ、千葉  

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  • ジュラ系・白亜系境界と放散虫のバイオイベント International conference

    松岡 篤

    日本地球惑星科学連合2017年大会  2017.5  日本地球惑星科学連合

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    Venue:幕張メッセ、千葉  

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  • 現生多節ナセラリア(放散虫) <i>Eucyrtidium</i>属の生物学

    松岡 篤, Li, X

    日本古生物学会2016年年会,  2016.6  日本古生物学会

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    Venue:福井県永平寺町 福井県立大学  

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  • 放散虫の収斂現象

    松岡 篤

    形の科学会第81回シンポジウム  2016.6  形の科学会

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    Venue:統計数理研究所, 東京都立川市  

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  • 放散虫のカレンダー

    松岡 篤, 大河内春香

    形の科学会第81回シンポジウム  2016.6  形の科学会

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    Venue:統計数理研究所, 東京都立川市  

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  • 有孔虫骨格の拡大模型の開発

    手嶋吉法, 星野 捷, 渡辺 宏, 木元克典, 松岡 篤

    形の科学会第81回シンポジウム  2016.6  形の科学会

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    Venue:統計数理研究所, 東京都立川市  

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  • InterRad 15の日本開催(2017年10月)と放散虫の普及活動. International conference

    松岡 篤

    日本地球惑星科学連合2016年大会  2016.5  日本地球惑星科学連合

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    Venue:幕張メッセ、千葉  

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  • Sandstone dikes within pelagic cherts of the Permian Yoshii Group in Southwest Japan and its deformation structure. International conference

    2016.5 

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  • Phylogeny of Middle Jurassic Striatojaponocapsa and middle Cretaceous Turbocapsula, and potential of reliable radiolarian zonation. International conference

    2016.5 

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  • 福井県大野市石徹白地域および長野地域に分布する手取層群より産出するジュラ紀海生二枚貝化石

    鹿澤優祐, 酒井佑輔, 半田直人, 松岡 篤

    日本古生物学会第165回例会  2016.1  日本古生物学会

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    Venue:京都大学  

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  • 放散虫の認知度を高めるための方策

    松岡 篤

    日本古生物学会第165回例会  2016.1  日本古生物学会

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    Venue:京都大学  

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  • An asteroid impact in the Late Triassic triggered mid-Norian radiolarian faunal turnover in the Panthalassa Ocean. International conference

    Onoue, T, Sato, H, Yamashita, D, Ikehara, M, Yasukawa, K, Fujinaga, K, Kato, Y, Matsuoka, A

    American Geophysical Union fall meeting 2015  2015.12  American Geophysical Union

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    Venue:San Francisco, USA.  

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  • 生痕化石からわかる深海生物の進化

    松岡 篤

    形の科学会第80回シンポジウム  2015.11  形の科学会

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    Venue:東京電機大学鳩山キャンパス  

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  • Radiolarian biostratigrahy of a Barremian-Aptian deep marine succession on the Indian passive margin and its record of Oceanic Anoxic Event, Southern Tibet

    Li, X, Matsuoka, A, Li, Y, Wang, C

    日本地質学会第122年学術大会  2015.9  日本地質学会

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    Venue:信州大学長野キャンパス  

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  • ジュラ紀付加体にみられる生痕化石とその意義

    松岡 篤

    日本地質学会第122年学術大会  2015.9  日本地質学会

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    Venue:信州大学長野キャンパス  

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  • 福井県大野市に分布する中部ジュラ系手取層群九頭竜亜層群貝皿層における放散虫群集とアンモノイド年代

    鹿澤優祐, 松岡 篤

    日本地質学会第122年学術大会  2015.9  日本地質学会

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    Venue:信州大学長野キャンパス  

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  • 長野県開田地域における美濃帯東部味噌川コンプレックスの岩相層序及び放散虫化石

    箱岩寛晶, 松岡 篤

    日本地質学会第122年学術大会  2015.9  日本地質学会

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    Venue:信州大学長野キャンパス  

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  • ペルム紀放散虫<i>Albaillella sinuata</i>の二形性の形態学的検討

    伊藤 剛, 馮 慶来, 松岡 篤

    日本地質学会第122年学術大会  2015.9  日本地質学会

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    Venue:信州大学長野キャンパス  

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  • Jurassic-Cretaceous boundary sequences in Japan and their implication for biochronological correlation. International conference

    Matsuoka, A

    The 12th Symposium on Mesozoic Terrestrial Ecosystems  2015.8 

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    Venue:Shenyang, China  

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  • Cretaceous origin of Cenozoic clam shrimp <i>Paraleptestheria</i> fauna. International conference

    Li, G, Matsuoka, A

    The 12th Symposium on Mesozoic Terrestrial Ecosystems  2015.8 

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    Venue:Shenyang, China  

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  • <i>Aquilapollenites</i> from Late Cretaceous marine and non-marine deposits in East Asia. International conference

    Yoshino, K, Matsuoka, A, Wan, X

    The 12th Symposium on Mesozoic Terrestrial Ecosystems  2015.8 

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    Venue:Shenyang, China  

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  • New late Early Cretaceous plants from the Tetori Group in central Japan and their paleaoclimatic implications. International conference

    Sakai, Y, Wang, Y.D, Matsuoka, A

    The 12th Symposium on Mesozoic Terrestrial Ecosystems  2015.8 

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    Venue:Shenyang, China  

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  • Method of observing microfossil-bearing clasts in the neritic-terrestrial conglomerate: advantages, significance and applications. International conference

    Li, X, Ito, T, Sakai, Y, Li, Y.L, Wang, C.S, Matsuoka, A

    The 12th Symposium on Mesozoic Terrestrial Ecosystems  2015.8 

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    Venue:Shenyang, China  

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  • Late Paleocene radiolarian faunas from sediments south to the Yarlung -Tsangpo suture zone and its implication for the evolusion of the Neo-Tethys.

    Li, X, Matsuoka, A, Li, Y, Wang, C

    日本古生物学会2015年年会  2015.6  日本古生物学会

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    Venue:産業技術総合研究所  

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  • InterRad 15の2017年日本開催とその意義

    松岡 篤

    日本古生物学会2015年年会  2015.6  日本古生物学会

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    Venue:産業技術総合研究所  

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  • 福井県大野市長野地域における手取層群の岩相層序と産出化石

    鹿澤優祐, 酒井佑輔, 松岡 篤

    日本古生物学会2015年年会  2015.6  日本古生物学会

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    Venue:産業技術総合研究所  

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  • 石川県白峰地域における手取層群赤岩亜層群の凝灰岩から得られたジルコンのU-Pb年代

    酒井佑輔, 薗田哲平, 堤 之恭, 楠橋 直, 堀江憲路, 松岡 篤

    日本古生物学会2015年年会  2015.6  日本古生物学会

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    Venue:産業技術総合研究所  

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  • Ammoniteに見られるねじれ -白亜紀後期の<i>Pravitocerass sigmoidale</i>

    松岡 篤, 吉野恒平

    形の科学会第79回シンポジウム  2015.6  形の科学会

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    Venue:千葉工業大学  

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  • 微化石の拡大模型

    松岡 篤, 栗原敏之, 岸本直子, 吉野 隆, 石田直人, 木元克典

    形の科学会第79回シンポジウム  2015.6  形の科学会

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    Venue:千葉工業大学  

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  • What does the radiolarian Spumellaria/Nassellaria ratio indicate? International conference

    Japan Geoscience Union Meeting 2015  2015.5 

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  • "Geology and radioralian fossils of the Misogawa Complex of the eastern Mino Terrane in the Kaida area, Nagano Prefecture " International conference

    Japan Geoscience Union Meeting 2015  2015.5 

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  • Stratigraphy of the Tetori Group in the Nagano area, Ono City, Fukui Prefecture, Central Japan International conference

    Japan Geoscience Union Meeting 2015  2015.5 

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  • Deep-water trace fossils in Paleozoic-Mesozoic accretionary complexes International conference

    Matsuoka, A

    13th International Ichnofabric Workshop  2015.5 

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    Venue:高知大学  

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  • Campanian-Maastrichtian (Late Cretaceous) Spore and Pollen from East Asia International conference

    Yoshino K, Matsuoka A, Wan X

    The 7th China-Japan-Korea Graduate Student Forum -Environment, Resources and Life  2014.9 

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    Venue:Beijing, China(中国地質大学北京)  

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  • 美濃帯坂祝セクションの層状チャートから復元した三畳紀海水Os同位体比変動

    野崎達生, 二階堂 崇, 高谷雄太郎, 鈴木勝彦, 加藤泰浩, 尾上哲治, 佐藤峰南, 松岡 篤

    日本地質学会第121年学術大会  2014.9  日本地質学会

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    Venue:鹿児島大学  

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  • 岐阜県美濃-七宗地域における美濃帯-上麻生ユニットと那比ユニットの再区分

    北川祐介, 荒井祐一郎, 松岡 篤

    日本地質学会第121年学術大会  2014.9  日本地質学会

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    Venue:鹿児島大学  

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  • 球面上のチューリング・パタンとシリカ殻の形成-中生代放散虫<i>Pantanellium</i>の実体模型

    松岡 篤, 吉野 隆

    日本地質学会第121年学術大会  2014.9  日本地質学会

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    Venue:鹿児島大学  

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  • Land-ocean linkage: pelagic materials in Mesozoic neritic-terrestrial sequences in East Asia. International conference

    Matsuoka A, Ito T, Sakai Y, Nikaido T

    The second International Symposium of the International Geoscience Programme Project 608, Cretaceous ecosystems and their responses to palaeoenvironmental changes in Asia and the Western Pacific  2014.9 

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    Venue:Waseda Univ. Tokyo, Japan  

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  • Denudation stages of mid-Mesozoic accretionary complexes in East Asia besed on microfossil-bearing clasts within the Mesozoic strate. International conference

    Ito T, Sakai Y, Feng Q L, Matsuoka A

    The second International Symposium of the International Geoscience Programme Project 608, Cretaceous ecosystems and their responses to palaeoenvironmental changes in Asia and the Western Pacific  2014.9 

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    Venue:Waseda Univ. Tokyo, Japan  

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  • Campanian-Maastrichtian palynomorph assemblage from East Asia. International conference

    Yoshino K, Matsuoka A, Wan X

    The second International Symposium of the International Geoscience Programme Project 608, Cretaceous ecosystems and their responses to palaeoenvironmental changes in Asia and the Western Pacific  2014.9 

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    Venue:Waseda Univ. Tokyo, Japan  

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  • 放散虫化石の分類について-中生代のPantanellium属を例として-

    松岡 篤

    日本古生物学会2014年年会  2014.6  日本古生物学会

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    Venue:九州大学総合研究博物館  

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  • Species concept of living and fossil radiolarians

    2014.6 

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  • Relationship between the Kamiaso unit and the Nabi unit in the Mino terrane of the Mino-Seki area, Gifu Prefecture International conference

    Japan Geoscience Union Meeting 2014  2014.4 

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  • Radiolarian morphology as a proxy for reconstructing pelagic environments: problem and perspective International conference

    Japan Geoscience Union Meeting 2014  2014.4 

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  • 3Dイメージング技術による放散虫研究

    石田直人, 岸本直子, 松岡 篤, 栗原敏之, 木元克典, 吉野 隆, 松浦 執

    日本古生物学会2013年年会  2013.6  日本古生物学会

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    Venue:熊本大学  

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  • 白山区の手取川流域および石徹白川流域における手取層群の白亜紀前期系植物相

    酒井佑輔, 関戸信次, 松岡 篤

    日本古生物学会2013年年会  2013.6  日本古生物学会

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    Venue:熊本大学  

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  • イラン西部ケルマンシャ地域ビセトゥンセクションのジュラ系放散虫層序

    松岡 篤, Vaziri, S.H

    日本古生物学会2013年年会  2013.6  日本古生物学会

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    Venue:熊本大学  

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  • 球形放散虫の3次元データから殻孔数を自動判別する試み

    吉野 隆, 岸本直子, 石田直人, 松岡 篤, 栗原敏之, 木元克典

    形の科学会第75回シンポジウム  2013.6  形の科学会

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    Venue:フォッサマグナミュージアム  

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  • ジオパーク普及のための”形”の活用-見立ての効用

    松岡 篤

    形の科学会第75回シンポジウム  2013.6  形の科学会

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    Venue:フォッサマグナミュージアム  

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  • 3Dイメージング技術によるプランクトン殻の微細構造

    石田直人, 岸本直子, 松岡 篤, 木元克典, 栗原敏之, 吉野 隆

    形の科学会第75回シンポジウム  2013.6  形の科学会

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    Venue:フォッサマグナミュージアム  

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  • 糸魚川ジオパークの認知度アンケートから見える糸魚川のイメージ

    大河内春香, 松岡 篤

    形の科学会第75回シンポジウム  2013.6  形の科学会

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    Venue:フォッサマグナミュージアム  

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  • アンモナイトと底生有孔虫の殻形態の比較

    植原和樹, 松岡 篤

    形の科学会第75回シンポジウム  2013.6  形の科学会

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    Venue:フォッサマグナミュージアム  

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  • イラン西部・ケルマンシャ地域における遠洋性堆積物の中生代放散虫層序 International conference

    松岡 篤, セイエド・ハミド・バジリ

    日本地球惑星科学連合2013年大会  2013.5  日本地球惑星科学連合

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    Venue:幕張メッセ国際会議場  

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  • Geology and radiolarian ages of the Kamiaso unit in the Mino-Seki area, Gifu Prefecture, International conference

    2013.5 

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  • 石川県白山市の下部白亜系手取層群赤岩亜層群赤岩層より産出したZamites属を含む植物化石群集.

    酒井佑輔, 山口一男, 関戸信次, 松岡 篤

    日本古生物学会第162回例会  2013.1  日本古生物学会

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    Venue:横浜国立大学  

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  • 中生代放散虫Pantanelliumの外層殻を構成する殻孔枠数の多様性.

    松岡 篤, 吉野 隆, 岸本直子, 石田直人, 栗原敏之, 木元克典

    日本古生物学会第162回例会  2013.1  日本古生物学会

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    Venue:横浜国立大学  

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  • バッキーボール式殻孔枠配列の外層殻をもつ中生代放散虫Pantanellium.

    松岡 篤, 吉野 隆, 岸本直子, 石田直人, 栗原敏之, 木元克典

    形の科学会第74回シンポジウム  2012.11  形の科学会

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    Venue:東京農工大学  

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  • Feeding behavior and skeltal morphology of radiolarians: Toward understanding past marine ecosystems. International conference

    Matsuoka, A

    The 2nd International Congress On Natural Sciences  2012.10 

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    Venue:Kaohsiung, Taiwan  

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  • Jurassic radiolarian fossils from siliceous mudstone in the Mino terrane, in Gifu Prefecture, centaral Japan. International conference

    Kitagawa, Y, Matsuoka, A

    The 2nd International Congress On Natural Sciences  2012.10 

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    Venue:Kaohsiung, Taiwan  

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  • トピックセッション「ジュラ系+」10年間の歩み

    松岡 篤

    日本地質学会第119年学術大会  2012.9  日本地質学会

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    Venue:大阪府立大学  

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  • Older accretionary units in Honshu and Shikoku islands, Japan.

    Kojima, S, Hayasaka, Y, Hiroi, Y, Matsuoka, A, Sano, H.. Suzuki, N, Takemura, S, Tujimori, T, Uchino, T

    日本地質学会第119年学術大会  2012.9  日本地質学会

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    Venue:大阪府立大学  

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  • 長野県塩尻南方地域に分布する美濃帯薮原層および奈良井層の地質

    内山雅貴, 松岡 篤

    日本地質学会第119年学術大会  2012.9  日本地質学会

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    Venue:大阪府立大学  

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  • 西南日本付加帯に含まれる上部古生界放散虫チャートの年代分布

    伊藤 剛, Feng, Q, 松岡 篤

    日本地質学会第119年学術大会  2012.9  日本地質学会

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    Venue:大阪府立大学  

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  • マイクロCT技術のジュラ紀放散虫化石への応用例

    石田直人, 岸本直子, 松岡 篤, 栗原敏之, 木元克典, 吉野 隆, 松浦 執

    日本地質学会第119年学術大会  2012.9  日本地質学会

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    Venue:大阪府立大学  

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  • Early Cretaceous flora from the Tetori Group in the Oguchi area, Hakusan City, Ishikawa Prefecture, Japan. International conference

    Sakai, Y, Sekido, S, Matsuoka, A

    The 13th International Palynological Congress(XIII IPC) & The 9th Internatinal Organisation of Palaeobotany Conference(IX IOPC).  2012.8 

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    Venue:中央大学後楽園キャンパス  

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  • Provincialism of Campanian (Late Cretaceous) radiolarians in the North Pacific. International conference

    Yoshino, K, Matsuoka, A

    34th International Geological Congress 2012  2012.8 

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    Venue:Brisbane, Australia  

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  • Cenozoic clam shrimp from China and their Cretaceous origin.

    Li, G, Matsuoka, A

    日本古生物学会2012年年会  2012.6  日本古生物学会

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    Venue:名古屋大学  

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  • 石川県白山市の下部白亜系手取層群より産出したTaeniopteris を含む植物化石群集

    酒井佑輔, 関戸信次, 松岡 篤

    日本古生物学会2012年年会  2012.6  日本古生物学会

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    Venue:名古屋大学  

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  • 美濃帯南部坂祝セクションにおける後期トリアス系層状チャートと放散虫生層序

    二階堂崇, 松岡 篤

    日本古生物学会2012年年会  2012.6  日本古生物学会

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    Venue:名古屋大学  

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  • 多節Nassellaria(放散虫)の捕食器官と殻形態からみた系統分類

    松岡 篤

    日本古生物学会2012年年会  2012.6  日本古生物学会

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    Venue:名古屋大学  

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  • 放散虫の多節骨格とその意味

    松岡 篤

    形の科学会第73回シンポジウム  2012.6  形の科学会

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    Venue:福井大学  

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  • Carapace surface ornamentation and its applications in fossil clam shrimp (Crustacean) taxomomy.

    Li, G, Matsuoka, A

    形の科学会第73回シンポジウム  2012.6  形の科学会

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    Venue:福井大学  

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  • 飼育実験とマイクロCT技術にもとづく放散虫の生態学的・形態学的研究 International conference

    松岡 篤

    日本地球惑星科学連合2012年大会  2012.5  日本地球惑星科学連合

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    Venue:幕張メッセ国際会議場  

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  • First record of Late Jurassic radiolarians from eastern Heilongjiang Province, NE China. International conference

    Li, G, Matsuoka, A

    日本地球惑星科学連合2012年大会  2012.5  日本地球惑星科学連合

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    Venue:幕張メッセ国際会議場  

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  • Recent progress in ecological and morphological studies on radiolarians. International conference

    Matsuoka, A

    The 13th Meeting of the International Association of Radiolarian Paleontologists, International Conference on Fossil and Recent Radiolarians  2012.3 

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    Venue:Cadiz, Spain  

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  • Geometrical models of skeleton forms of spherical Radiolaria. International conference

    Yoshino, T, Matsuoka, A, Kurihara, T, Ishida, N, Kishimoto, N, Kimoto, K, Matsuura, S

    The 13th Meeting of the International Association of Radiolarian Paleontologists, International Conference on Fossil and Recent Radiolarians  2012.3 

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    Venue:Cadiz, Spain  

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  • Evolutionary patterns of Pliensbachian and Toarcian (Early Jurassic) Radiolaria. International conference

    Goričan, Š, Carter, E. S, Guex, J, O'dogherty, L, De Wever, P, Dumitrica, P, Hori, R. S, Matsuoka, A, Whalen, P.A

    The 13th Meeting of the International Association of Radiolarian Paleontologists, International Conference on Fossil and Recent Radiolarians  2012.3 

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    Venue:Cadiz, Spain  

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  • Acquisition of Three Dimensional Shape of Radiolaria using Micro X-ray Computer Tomography. International conference

    Kishimoto, N, Ishida, N, Kurihara, T, Kimoto, K, Matsuoka, A, Yoshino, T, Matsuura, S

    The 13th Meeting of the International Association of Radiolarian Paleontologists, International Conference on Fossil and Recent Radiolarians  2012.3 

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    Venue:Cadiz, Spain  

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  • Variability in Permian chert accumulation in the central-west Panthalassa: the occurrence of the upper Paleozoic cherts within accretionary complexes in southwest Japan. International conference

    Ito, T, Feng, Q, Matsuoka, A

    The 13th Meeting of the International Association of Radiolarian Paleontologists, International Conference on Fossil and Recent Radiolarians  2012.3 

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    Venue:Cadiz, Spain  

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  • Guadalupian (Middle Permian) radiolarian and sponge spicule faunas from the Bancheng Formation of the Qinzhou allochthon, South China. International conference

    Ito, T, Zhang, L, Feng, Q, Matsuoka, A

    The 13th Meeting of the International Association of Radiolarian Paleontologists, International Conference on Fossil and Recent Radiolarians  2012.3 

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    Venue:Cadiz, Spain  

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  • 新潟大学コア・ステーション「形の科学研究センター」の活動パンタネグラフ誕生までの道のり

    松岡 篤

    かたちシューレ2012  2012.3 

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    Venue:群馬県四万温泉  

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  • 中国のジュラ紀の貝エビ

    Li, G, 松岡 篤

    日本古生物学会第161回例会  2012.1  日本古生物学会

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    Venue:群馬県富岡市  

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  • 石川県白山市女原の下部白亜系手取層群から産出した植物化石群集

    酒井佑輔, 松岡 篤

    日本古生物学会第161回例会  2012.1  日本古生物学会

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    Venue:群馬県富岡市  

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  • 白亜系和泉層群からの異常巻アンモノイドPravitoceras sigmoidaleの産状とその意義

    吉野恒平, 松岡 篤

    日本古生物学会第161回例会  2012.1  日本古生物学会

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    Venue:群馬県富岡市  

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  • 中生代放散虫Pantanelliumの内層殻にみられる殻孔枠の配列と形態形成.

    松岡 篤, 吉野 隆, 岸本直子, 栗原敏之, 石田直人, 木元克典, 松浦 執

    日本古生物学会第161回例会  2012.1  日本古生物学会

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    Venue:群馬県富岡市  

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  • マイクロCTによる放散虫および有孔虫の3次元構造取得と石膏製実体模型作成

    岸本直子, 石田直人, 木元克典, 栗原敏之, 松岡 篤, 吉野 隆, 松浦 執

    日本古生物学会第161回例会  2012.1  日本古生物学会

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    Venue:群馬県富岡市  

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  • 放散虫骨格の3次元構造と力学特性

    岸本直子, 石田直人, 松岡 篤, 栗原敏之, 吉野 隆, 木元克典

    日本機械学会バイオエンジニアリング第24回講演会  2012.1  日本機械学会

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    Venue:大阪大学豊中キャンパス  

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  • 微化石のトランプ

    松岡 篤, 小林由枝

    形の科学会第72回シンポジウム  2011.12  形の科学会

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    Venue:鹿児島大学  

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  • 中生代放散虫Pantanelliumの骨格構造がもつ多面体幾何学的な特徴

    吉野 隆, 松岡 篤, 岸本直子, 栗原敏之, 石田直人, 木元克典, 松浦 執

    形の科学会第72回シンポジウム  2011.12  形の科学会

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    Venue:鹿児島大学  

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  • 多節Nassellaria(放散虫)の補食行動と系統分類

    松岡 篤

    形の科学会第72回シンポジウム  2011.12  形の科学会

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    Venue:鹿児島大学  

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  • Discovery of Late Jurassic radiolarians from Zhenbaodao area of Heilongjiang Province, NE China.

    Li, G, Matsuoka, A

    2011年放散虫研究集会松山大会  2011.10 

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    Venue:愛媛大学  

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  • Pantanelliidae科放散虫にみられる殻孔枠の配列とその分類学的評価

    松岡 篤, 吉野 隆, 栗原敏之, 石田直人, 木元克典, 岸本直子, 松浦 執

    2011年放散虫研究集会松山大会  2011.10 

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    Venue:愛媛大学  

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  • 和泉層群のPravitoceras sigmoidale帯(上部Campanian階)から産する放散虫群集

    吉野恒平, 松岡 篤

    2011年放散虫研究集会松山大会  2011.10 

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    Venue:愛媛大学  

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  • Feeding behavior and skeletal morphology of radiolarians. International conference

    Matsuoka, A

    1st Asian Congress of Protistology  2011.10 

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    Venue:Jeju, Korea  

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  • Campanian期後期に北太平洋に生息した放散虫群集 -淡路島南西部の和泉層群北縁相から得られた放散虫化石-

    吉野恒平, 松岡 篤

    日本地質学会第118年学術大会  2011.9  日本地質学会

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    Venue:茨木大学  

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  • 福島県南相馬市信田沢地域に分布する上部ジュラ系相馬中村層群栃窪層の堆積環境と植物化石組成

    佐藤友哉, 松岡 篤

    日本地質学会第118年学術大会  2011.9  日本地質学会

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    Venue:茨木大学  

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  • 南中国Xiaodong地域から産出したペルム紀中世放散虫化石群集

    伊藤 剛, Feng, Q, 松岡 篤

    日本地質学会第118年学術大会  2011.9  日本地質学会

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    Venue:茨木大学  

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  • 石川県の手取川流域北部に分布する手取層群の層序と植物化石群

    酒井佑輔, 松岡 篤

    日本地質学会第118年学術大会  2011.9  日本地質学会

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    Venue:茨木大学  

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  • 南相馬市の相馬中村層群小山田層の新産地から得られた白亜紀初期のアンモナイトおよびオウムガイ群集

    佐藤 正, 竹谷陽二郎, 八巻安夫, 栃久保廣泰, 荒 好, 平 宗雄, 岸崎晃一郎, 二上文彦, 田村 翼, 松岡 篤

    日本地質学会第118年学術大会  2011.9  日本地質学会

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    Venue:茨木大学  

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  • Toarcian期前期の海洋無酸素事変とアンモナイト群集の多様性低下‐西南日本の下部ジュラ系豊浦層群の例

    中田健太郎, 松岡 篤

    日本地質学会第118年学術大会  2011.9  日本地質学会

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    Venue:茨木大学  

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  • 下部ジュラ系Pliensbachian-Toarcian階のアンモナイト/放散虫層序 --Toarcian期の海洋無酸素事変の理解に向けて

    松岡 篤, 中田健太郎

    日本地質学会第118年学術大会  2011.9  日本地質学会

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    Venue:茨木大学  

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  • ジュラ系全体にわたる放散虫生層序区分とUnitary Association法についてのコメント

    松岡 篤

    日本古生物学会2011年年会  2011.7  日本古生物学会

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    Venue:金沢大学  

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  • Ammonoid paleobiogeographic changes of the Northern hemisphere in the late Early jurassic.

    Nakada, K, Matsuoka, A, Yin, J

    日本古生物学会2011年年会  2011.7  日本古生物学会

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    Venue:金沢大学  

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  • 中生代放散虫Pantanelliumの骨格構造と形態形成

    松岡 篤, 吉野 隆, 栗原敏之, 石田直人, 木元克典, 岸本直子, 松浦 執

    形の科学会第71回シンポジウム  2011.6  形の科学会

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    Venue:千葉大学  

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  • 球面上のVertex Dynamics (その2)

    吉野 隆, 岸本直子, 松岡 篤, 栗原敏之, 石田直人, 木元克典, 松浦 執

    形の科学会第71回シンポジウム  2011.6  形の科学会

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    Venue:千葉大学  

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  • 美濃帯坂祝セクションに産するチャート試料から復元した三畳紀古海水のOs 同位体比変動と古海洋環境変動 International conference

    野崎達生, 二階堂 崇, 高谷雄太郎, 鈴木勝彦, 加藤泰浩, 松岡 篤

    日本地球惑星科学連合2011年大会  2011.5 

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    Venue:幕張メッセ国際会議場  

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  • 日本海佐渡沖の表層~亜表層水における2005 年・2006 年(6 月~9 月)の放散虫の深度分布と季節変化 International conference

    栗原敏之, 松岡 篤

    日本地球惑星科学連合2011年大会  2011.5 

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    Venue:幕張メッセ国際会議場  

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  • ジュラ紀古世後期(Pliensbachian 期後期‐Toarcian 期)におけるアンモノイド相の変遷とToarcian 期前期の海洋無酸素事変 International conference

    中田健太郎, 松岡 篤

    日本地球惑星科学連合2011年大会  2011.5 

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    Venue:幕張メッセ国際会議場  

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  • ジュラ紀Toarcian 海洋無酸素事件とアンモノイド/放散虫化石帯区分 International conference

    松岡 篤, 中田健太郎

    日本地球惑星科学連合2011年大会  2011.5 

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    Venue:幕張メッセ国際会議場  

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  • 美濃帯坂祝セクションにおける後期トリアス紀放散虫生層序の再検討 International conference

    二階堂 崇, 松岡 篤

    日本地球惑星科学連合2011年大会  2011.5 

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    Venue:幕張メッセ国際会議場  

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  • 中生代放散虫Pantanelliumの外層殻にみられる殻孔枠の配列とその分類学的評価.

    松岡 篤, 吉野 隆, 栗原敏之, 石田直人, 木元克典, 岸本直子, 松浦 執

    日本古生物学会第160回例会  2011.1  日本古生物学会

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    Venue:高知大学  

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  • 中生代放散虫Pantanelliumの実体モデルと走査型電子顕微鏡像

    松岡 篤, 吉野 隆, 岸本直子, 木元克典, 栗原敏之, 石田直人, 松浦 執, 手嶋吉法

    形の科学会第70回シンポジウム  2010.11  形の科学会

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    Venue:兵庫県立加古川東高等学校  

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  • 中生代放散虫Pantanelliumの形態形質とその分類学的評価.

    松岡 篤, 吉野 隆, 栗原敏之, 石田直人, 木元克典, 岸本直子, 松浦 執

    形の科学会第70回シンポジウム  2010.11  形の科学会

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    Venue:兵庫県立加古川東高等学校  

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  • 新潟県糸魚川地域の水上谷層の岩相と礫岩から産出した放散虫化石‐糸魚川の中生界研究1‐.

    伊藤 剛, 石田直人, 茨木洋介, 梅津 暢, 酒井佑輔, 中田健太郎, 松本明日香, 吉野恒平, 松岡 篤

    日本地質学会第117年学術大会  2010.9  日本地質学会

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    Venue:富山大学  

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  • 大学の研究・教育・普及活動とジオパーク:新潟大学と糸魚川市の連携を例にして.

    松岡 篤

    日本地質学会第117年学術大会  2010.9  日本地質学会

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    Venue:富山大学  

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  • Co-occurrence of ammonite and radiolarians from the Upper Cretaceous Izumi Group in southwestern part of Awaji Island, Hyogo Prefecture, southwest Japan. International conference

    Yoshino, K, Matsuoka, A

    8th International Symposium, Cephalopods - Present and Past  2010.8 

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  • Taxonomic and biostratigraphic analyses of the genus Amaltheus, Late Pliensbachian (Early Jurassic) ammonite, from East Asia International conference

    Nakada, K, Meister, C, Matsuoka, A

    8th International Symposium, Cephalopods - Present and Past  2010.8 

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  • Paleobiogeographical changes of late Early Jurassic ammonite assemblage from East Asia. International conference

    Nakada, K, Matsuoka, A, Yin, J

    第8回国際ジュラ系会議  2010.8 

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    Venue:中国四川省  

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  • Ammonite faunas from the Middle Jurassic-lowest Cretaceous Somanakamura Group in Fukushima Prefecture, northeast Japan. International conference

    Matsuoka, A, Tamura, T, Futakami, F, Taketani, Y, Sato, T

    第8回国際ジュラ系会議  2010.8 

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    Venue:中国四川省  

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  • 来馬層群寺谷層より新たに産出したジュラ紀古世後期アンモノイド群集.

    中田健太郎, Meister C, 松岡 篤

    日本地質学会中部支部2010年年会  2010.7  日本地質学会中部支部

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    Venue:福井県立博物館  

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  • 新潟大学理学部地質科学科の2009年度社会連携事業- 糸魚川ジオパークに関連して -.

    松岡 篤, 栗原敏之

    日本地質学会中部支部2010年年会  2010.7  日本地質学会中部支部

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    Venue:福井県立博物館  

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  • 中生代放散虫Pantanelliumの外層殻にみられる27 個の殻孔の配列.

    松岡 篤, 吉野 隆, 栗原敏之, 石田直人, 木元克典, 岸本直子, 松浦 執

    形の科学会第69回シンポジウム  2010.6  形の科学会

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    Venue:東京学芸大学  

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  • 汎用的な光学機器を用いた化石の三次元形状データ取得法.

    吉岡 翼, 松岡 篤

    形の科学会第69回シンポジウム  2010.6  形の科学会

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    Venue:東京学芸大学  

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  • 放散虫Mirifusus属の殻形態から着想した3次元フレーム構造の力学特性.

    岸本直子, 吉野 隆, 石田直人, 木元克典, 栗原敏之, 松岡 篤, 松浦 執

    形の科学会第69回シンポジウム  2010.6  形の科学会

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    Venue:東京学芸大学  

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  • 球面上のVertex Dynamics モデル

    吉野 隆, 岸本直子, 松岡 篤, 栗原敏之, 石田直人, 木元克典, 松浦 執

    形の科学会第69回シンポジウム  2010.6  形の科学会

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    Venue:東京学芸大学  

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  • 本邦より産出するPliensbachian期後期(ジュラ紀古世)のアンモナイトAmaltheus属の分類学的・生層序学的検討.

    中田健太郎, Meister, C, 松岡 篤

    日本古生物学会2010年年会  2010.6  日本古生物学会

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    Venue:筑波大学  

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  • 中生代放散虫Pantanelliumの外層殻にみられる殻孔の配列様式は何が決めるのか?

    松岡 篤, 吉野 隆, 栗原敏之, 石田直人, 木元克典, 岸本直子, 松浦 執

    日本古生物学会2010年年会  2010.6  日本古生物学会

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    Venue:筑波大学  

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  • 日本のジュラ紀古世後期におけるアンモナイト群集の古生物地理学的変遷

    中田健太郎, 松岡 篤, Yin J

    日本古生物学会2010年年会  2010.6  日本古生物学会

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    Venue:筑波大学  

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  • 関東山地両神山東部地域における両神山スラストの追跡.

    伊藤 剛, 二階堂 崇, 松岡 篤

    日本地球惑星科学連合2010年大会  2010.5  日本地球惑星科学連合

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    Venue:千葉幕張メッセ  

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  • 美濃帯坂祝セクションにおけるストライプチャートの層位分布と意義.

    二階堂 崇, 松岡 篤

    日本地球惑星科学連合2010年大会  2010.5  日本地球惑星科学連合

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    Venue:千葉幕張メッセ  

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  • 中生代古海洋学のための放散虫生層序 2010年のレビューと展望

    松岡 篤

    日本地球惑星科学連合2010年大会  2010.5  日本地球惑星科学連合

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    Venue:千葉幕張メッセ  

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  • 西南日本付加体中のペルム系チャートの産状と層序およびその比較.

    伊藤 剛, 松岡 篤

    日本地球惑星科学連合2010年大会  2010.5  日本地球惑星科学連合

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    Venue:千葉幕張メッセ  

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  • 上部白亜系和泉層群の北縁相と主部相から産出する放散虫群集の比較.

    吉野恒平, 松岡 篤

    日本地球惑星科学連合2010年大会  2010.5  日本地球惑星科学連合

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    Venue:千葉幕張メッセ  

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  • 日本海佐渡沖における秋季の現生放散虫群集.

    栗原敏之, 松岡 篤

    日本地球惑星科学連合2010年大会  2010.5  日本地球惑星科学連合

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    Venue:千葉幕張メッセ  

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  • Enlarged Skeleton Models of Plankton for Tactile Teaching. International conference

    Teshima, Y, Matsuoka, A, Fujiyoshi, M, Ikegami, Y, Kaneko, T, Oouchi, S, Watanabe, Y, Yamazawa, K

    The Institute of Science and Technology Austria (IST Austria) Computer Science Symposium, Reactive Modeling in Science and Engineering  2010.5 

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    Venue:Klosterneuburg, Austria  

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  • 有殻原生生物骨格に学ぶ構造物システム

    岸本直子, 吉野 隆, 松岡 篤, 木元克典, 栗原敏之, 石田直人, 松浦 執

    日本機械学会第22回バイオエンジニアリング講演会  2010.1 

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    Venue:岡山理科大学  

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  • 中生代放散虫Pantanellium の外層殻にみられる殻孔の配列様式とその多様性.

    松岡 篤, 吉野 隆, 栗原敏之, 石田直人, 木元克典, 岸本直子, 松浦 執

    形の科学会第68回シンポジウム  2009.11  形の科学会

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    Venue:獨協医科大学  

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  • 浮遊性有孔虫の幾何モデリング:口孔(Aperture)の実装と分類学的考察.

    木元克典, 吉野 隆, 岸本直子, 松岡 篤, 栗原敏之, 石田直人, 松浦 執

    形の科学会第68回シンポジウム  2009.11  形の科学会

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    Venue:獨協医科大学  

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  • 海洋性プランクトンの形態から学ぶモジュール型宇宙構造物.

    岸本直子, 吉野 隆, 木元克典, 栗原敏之, 石田直人, 松岡 篤, 松浦 執

    形の科学会第68回シンポジウム  2009.11  形の科学会

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    Venue:獨協医科大学  

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  • 新潟大学サイエンスミュージアムの出前サービス-「くらしの中にある大学」(2009.9.11-12朱鷺メッセ)

    二階堂 崇, 松岡 篤

    形の科学会第68回シンポジウム  2009.11  形の科学会

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    Venue:獨協医科大学  

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  • 放散虫Mirifusus 属の進化における骨組形状遷移の構造力学的検証.

    吉野 隆, 石田直人, 岸本直子, 松岡 篤, 栗原敏之, 木元克典, 松浦 執

    形の科学会第68回シンポジウム  2009.11  形の科学会

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    Venue:獨協医科大学  

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  • Lithostratigraphy and radiolarian dating of the Yoshii Group in the Otake-yama Area, Okayama Prefecture, southwest Japan: A Permian accretionary complex with a pile-nappe structure. International conference

    Ito, T, Matsuoka, A

    The 12th Meeting of the International Association of Radiolarian Paleontologists, Radiolarians Through Time  2009.9  International Association of Radiolarian Paleontologists

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    Venue:Nanjing, China.  

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  • Catalogue of Mesozoic radiolarian genera. International conference

    O'Dogherty, L, Carter, E, Dumitrica, P, Gorican, S, De Wever, P, Bandini, A, Baumgarter, P, Hugerbuhler, A, Matsuoka, A. Takemura, A

    The 12th Meeting of the International Association of Radiolarian Paleontologists, Radiolarians Through Time  2009.9  International Association of Radiolarian Paleontologists

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    Venue:Nanjing, China.  

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  • Genera systematics revision: Implications for the stratigraphic ranges of Mesozoic families. International conference

    O'Dogherty, L, Carter, E, Dumitrica, P, Gorican, S, De Wever, P, Bandini, A, Baumgarter, P, Hugerbuhler, A, Matsuoka, A. Takemura, A

    The 12th Meeting of the International Association of Radiolarian Paleontologists, Radiolarians Through Time  2009.9  International Association of Radiolarian Paleontologists

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    Venue:Nanjing, China.  

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  • Upper Campanian radiolarian fossils from the Upper Cretaceous Izumi Group in the southwestern part of Awaji Island, Hyogo Prefecture, southwest Japan. International conference

    Yoshino, K, Matsuoka, A

    The 12th Meeting of the International Association of Radiolarian Paleontologists, Radiolarians Through Time  2009.9  International Association of Radiolarian Paleontologists

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    Venue:Nanjing, China.  

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  • Mathematical and Mechanical Aspects of Radiolarian Skeletons. International conference

    Yoshino, T, Matsuoka, A, Kishimoto, N, Kimoto, K, Kurihara, T, Ishida, N, Matsuura, S

    The 12th Meeting of the International Association of Radiolarian Paleontologists, Radiolarians Through Time  2009.9  International Association of Radiolarian Paleontologists

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    Venue:Nanjing, China.  

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  • Interdisciplinary research on form and function of radiolarians: Introduction to multi-scale design. International conference

    Matsuoka, A, Yoshino, T, Kishimoto, N, Kimoto, K, Kurihara, T, Ishida, N, Matsuura, S

    The 12th Meeting of the International Association of Radiolarian Paleontologists, Radiolarians Through Time  2009.9  International Association of Radiolarian Paleontologists

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    Venue:Nanjing, China.  

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  • Seasonal change of living radiolarian faunas in surface-subsurface waters of the Japan Sea off Sado Island, central Japan. International conference

    Kurihara, T, Matsuoka

    The 12th Meeting of the International Association of Radiolarian Paleontologists, Radiolarians Through Time  2009.9  International Association of Radiolarian Paleontologists

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    Venue:Nanjing, China.  

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  • Plaster models of radiolarian skeletons produced by X-ray microtomography and 3-D printer. International conference

    Matsuoka, A. Teshima

    The 12th Meeting of the International Association of Radiolarian Paleontologists, Radiolarians Through Time  2009.9  International Association of Radiolarian Paleontologists

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    Venue:Nanjing, China.  

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  • Lithostratigraphy and radioralian biostratigraphy of Triassic-Jurassic chert sequences in the Calamian Islands, North Palawan Block, Philippines. International conference

    Matsuoka, A, Nikaido, T, Onoue, T, Zamoras, L

    The 12th Meeting of the International Association of Radiolarian Paleontologists, Radiolarians Through Time  2009.9  International Association of Radiolarian Paleontologists

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    Venue:Nanjing, China.  

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  • 淡路島南西部における上部白亜系和泉層群西淡層から産するアンモナイト化石・放散虫化石・有孔虫化石とその意義.

    吉野恒平, 松岡 篤

    日本地質学会第116年学術大会  2009.9  日本地質学会

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    Venue:岡山理科大学  

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  • 大学が実施する普及活動:新潟大学における頭足類展(2008)を例にして

    松岡 篤

    日本地質学会第116年学術大会  2009.9  日本地質学会

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    Venue:岡山理科大学  

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  • 下部ジュラ系豊浦層群西中山層より産出するCleviceras属の分類学的再検討.

    中田健太郎, 松岡 篤

    日本地質学会第116年学術大会  2009.9  日本地質学会

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    Venue:岡山理科大学  

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  • ペルム紀付加体秋吉テレーンのチャート-砕屑岩シーケンスの繰り返し構造とその意義

    伊藤 剛, 松岡 篤

    日本地質学会第116年学術大会  2009.9  日本地質学会

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    Venue:岡山理科大学  

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  • 放散虫Mirifusus属(海洋プランクトン)の進化と骨組構造の力学的最適化-骨組形状遷移の構造力学的検証-

    吉野 隆, 石田直人, 岸本直子, 松岡 篤, 栗原敏之, 木元克典, 松浦 執

    応用力学シンポジウム  2009.9 

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    Venue:九州大学  

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  • 中生代放散虫Pantanellium の外層殻にみられる殻孔の幾何学.

    吉野 隆, 松岡 篤, 栗原敏之, 石田直人, 木元克典, 岸本直子, 松浦 執

    形の科学会第67回シンポジウム  2009.6  形の科学会

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    Venue:東京大学柏キャンパス  

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  • 3次元実体模型の観察にもとづく中生代放散虫Pantanelliumの外層殻にみられる殻孔の数と配列様式.

    松岡 篤, 吉野 隆, 栗原敏之, 石田直人, 木元克典, 岸本直子, 松浦 執

    日本古生物学会2009年年会  2009.6  日本古生物学会

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    Venue:千葉大学  

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  • 北チベットのQiangtang basinより産出するToarcian(前期ジュラ紀)アンモナイト群集の古生物地理学的意義.

    中田健太郎, 松岡 篤, Yin, J

    日本古生物学会2009年年会  2009.6  日本古生物学会

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    Venue:千葉大学  

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  • 中生代放散虫Pantanellium の外層殻にみられる殻孔の配列様式.

    松岡 篤, 吉野 隆, 栗原敏之, 石田直人, 木元克典, 岸本直子, 松浦 執

    形の科学会第67回シンポジウム  2009.6  形の科学会

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    Venue:東京大学柏キャンパス  

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  • 関東山地両神山チャートユニットの内部構造

    二階堂崇, 松岡 篤

    日本地球惑星科学連合2009年大会  2009.5 

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    Venue:千葉幕張メッセ  

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  • Seasonal faunal change of living radiolarians in surface-subsurface waters of the Japan Sea off Sado Island, central Japan.

    Kurihara, T, Matsuoka, A

    日本地球惑星科学連合2009年大会  2009.5 

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    Venue:千葉幕張メッセ  

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  • 球形放散虫骨格の数理モデルに関するいくつかの問題.

    吉野 隆, 松岡 篤, 栗原敏之, 石田直人, 岸本直子, 木元克典, 松浦 執

    日本地球惑星科学連合2009年大会  2009.5 

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    Venue:千葉幕張メッセ  

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  • 美濃帯坂祝セクションの放散虫生層序とストライプチャート

    二階堂崇, 松岡 篤

    日本地球惑星科学連合2009年大会  2009.5 

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    Venue:千葉幕張メッセ  

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  • 淡路島南西部の和泉層群から産出するカンパニアン後期の放散虫化石.

    吉野恒平, 松岡 篤

    日本地球惑星科学連合2009年大会  2009.5 

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    Venue:千葉幕張メッセ  

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  • 関東山地北西部における北部秩父帯の岩相層序と放散虫化石年代.

    小久保晋一, 松岡 篤

    日本地球惑星科学連合2009年大会  2009.5 

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    Venue:千葉幕張メッセ  

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  • フィラメントチャート:フィリピン北パラワン地塊の上部トリアス系チャートから産する薄殻二枚貝.

    尾上哲治, 二階堂崇, Zamoras, L, 松岡 篤

    日本地球惑星科学連合2009年大会  2009.5 

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    Venue:千葉幕張メッセ  

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  • 大学における地学教員養成の現状と問題点.

    藤林紀枝, 藤本光一郎, 星 博幸, 天野和孝, 中井睦美, 松岡 篤

    日本地球惑星科学連合2009年大会  2009.5 

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    Venue:千葉幕張メッセ  

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  • 美濃帯および北パラワン地塊のジュラ紀付加体中にみられるストライプチャート.

    松岡 篤, 二階堂崇, 尾上哲治, Zamoras, L

    日本地球惑星科学連合2009年大会  2009.5 

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    Venue:千葉幕張メッセ  

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  • 新潟大学旭町学術資料展示館2008年企画展「頭足類展 アンモナイトとその仲間たち」の報告.

    松岡 篤, 中田健太郎, 二階堂 崇, 小久保晋一, 伊藤 剛, 吉岡 翼, 石田直人, 栗原敏之, 寺部和伸, 半田直人, 吉野恒平, 佐藤友哉

    日本古生物学会第158回例会  2009.1  日本古生物学会

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    Venue:沖縄  

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  • Development of three-dimensional geometrical models for tactile teaching materials. International conference

    Teshima, Y, Fujiyoshi, M, Ikegami, Y, Kaneko, T, Matsuoka, A, Nakano, T, Oouchi, S, Tanaka, A, Watanabe, Y, Yamazawa, K

    Tactile Graphics 2008 - 4th International Conference On Tactile Diagrams, Maps And Pictures  2008.12 

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    Venue:Birmingham, UK  

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  • 理科教育普及活動における連携のかたち-新潟大学理学部地質科学科の実践例-.

    松岡 篤

    形の科学会第66回シンポジウム  2008.10  形の科学会

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    Venue:京都  

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  • 美濃帯南部坂祝セクションにおけるトリアス系放散虫生層序.

    二階堂崇, 松岡 篤

    日本地質学会第115年学術大会  2008.9  日本地質学会

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    Venue:秋田  

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  • 下部ジュラ系豊浦層群西中山層より産出するDactylioceras helianthoidesの層位的な形態変化.

    中田健太郎, 松岡 篤

    日本地質学会第115年学術大会  2008.9  日本地質学会

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    Venue:秋田  

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  • 九頭竜亜層群貝皿層(中部ジュラ系)におけるPseudoneuqueniceras 属アンモナイトの産出層準と計量生物学的検討.

    松岡 篤, 半田直人, 安曽潤子, 中田健太郎, 寺部和伸, 佐藤 正

    日本地質学会第115年学術大会  2008.9  日本地質学会

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    Venue:秋田  

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  • ペルム系芳井層群のチャート層最上部の年代.

    伊藤 剛, 松岡 篤

    日本地質学会第115年学術大会  2008.9  日本地質学会

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    Venue:秋田  

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  • The Toarcian Oceanic Anoxic Event and biodiversity fluctuation in Early Jurassic ammonoid assemblage in East Asia. International conference

    Nakada, K, Matsuoka, A

    The 33rd International Geological Congress (IGC)  2008.8 

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    Venue:Oslo, Norway  

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  • Itoigawa Geopark: the first Geopark candidate in Japan. International conference

    Takenouchi, K, Ibaragi, Y, Miyajima, H, Ohkouchi, M, Matsuoka, A

    33th IGC  2008.8 

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    Venue:Oslo  

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  • Striped radiolarian chert: evidence for superimposed cyclicity in the Earth System. International conference

    Matsuoka, A, Nikaido, T, Onoue, T, Zamoras, L

    33th IGC  2008.8 

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    Venue:Oslo  

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  • フィリピン北パラワン地塊のDimanglet島におけるトリアス-ジュラ系放散虫化石層序.

    松岡 篤, 二階堂崇, 尾上哲治, Zamoras, L.R

    日本古生物学会2008年年会  2008.7  日本古生物学会

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    Venue:仙台  

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  • 福井県九頭竜川上流地域の手取層群貝皿層における軟体動物化石層序.

    半田直人, 安曽潤子, Yin, J, 松岡 篤

    日本古生物学会2008年年会  2008.7  日本古生物学会

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    Venue:仙台  

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  • マルチスケールデザイン学の提案:プランクトンから宇宙構造物まで.

    松岡 篤, 木元克典, 栗原敏之, 石田直人, 岸本直子, 吉野 隆, 松浦 執

    日本地質学会中部支部2008年年会  2008.6  日本地質学会中部支部

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    Venue:新潟  

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  • 「地質の日」制定記念行事 2008年新潟大学サイエンスフェスティバルの報告.

    栗原敏之, 平中宏典, 地質の日, 制定記念イベント実行委員会

    日本地質学会中部支部2008年年会  2008.6  日本地質学会中部支部

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    Venue:新潟  

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  • 糸魚川ジオパークの紹介 ―日本初の世界ジオパークを目指して―.

    茨木洋介, 宮島 宏, 竹之内耕, 松岡 篤, 大河内誠

    日本地質学会中部支部2008年年会  2008.6  日本地質学会中部支部

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    Venue:新潟  

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  • 岡山県芳井地域,芳井層群より産出した中期ペルム紀放散虫化石.

    伊藤 剛, 松岡 篤

    日本地質学会中部支部2008年年会  2008.6  日本地質学会中部支部

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    Venue:新潟  

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  • 有殻原生生物の実体モデル作成と研究・教育への利用

    松岡 篤, 手嶋吉法

    形の科学会第65回シンポジウム  2008.6  形の科学会

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    Venue:仙台  

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  • 球形放散虫骨格生成のための凸多面体形成.

    吉野 隆, 松岡 篤, 栗原敏之, 岸本直子, 木元克典, 松浦 執, 石田直人

    形の科学会第65回シンポジウム  2008.6  形の科学会

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    Venue:仙台  

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  • 浮遊性有孔虫チャンバー形成モデル ―その1:モデルと実装―.

    吉野 隆, 木元克典, 岸本直子, 松岡 篤, 栗原敏之, 松浦 執, 石田直人

    形の科学会第65回シンポジウム  2008.6  形の科学会

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    Venue:仙台  

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  • 浮遊性有孔虫チャンバー形成モデルその2:-実在する形態との比較-.

    木元克典, 吉野 隆, 岸本直子, 松岡 篤, 栗原敏之, 石田直人, 松浦 執

    形の科学会第65回シンポジウム  2008.6  形の科学会

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    Venue:仙台  

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  • 有殻原生生物の実体モデル.

    手嶋吉法, 松岡 篤, 池上祐司, 大内 進, 金子 健, 藤芳 衛, 山澤建二, 渡辺泰成

    形の科学会第65回シンポジウム  2008.6  形の科学会

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    Venue:仙台  

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  • 放散虫のクッキー.

    松岡 篤, 猪俣多喜, 塩澤澄枝, 菊地聡一郎, 友木屋絵理

    形の科学会第65回シンポジウム  2008.6  形の科学会

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    Venue:仙台  

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  • フィリピン北パラワン地塊カラミアン諸島のDimangletセクションにおけるトリアスージュラ紀放散虫生層序.

    松岡 篤, 二階堂崇, 尾上哲治, Zamoras, L.R

    日本地球惑星科学連合2008年大会  2008.5 

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  • ストライプ構造をもつ放散虫チャートとその古海洋学的な意義.

    松岡 篤, 二階堂崇, 尾上哲治, Zamoras, L.R

    日本地球惑星科学連合2008年大会  2008.5 

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  • 関東山地北西部に分布する北部秩父帯上吉田層のチャート角礫岩の堆積学的・微古生物学的検討.

    小久保晋一, 松岡 篤

    日本地球惑星科学連合2008年大会  2008.5 

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  • 岡山県芳井地域のペルム系芳井層群にみられるパイルナップ構造.

    伊藤 剛, 松岡 篤

    日本地球惑星科学連合2008年大会  2008.5 

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  • 美濃帯南部坂祝セクションのトリアス紀層状チャートにおける岩相変化と放散虫化石.

    二階堂崇, 松岡 篤

    日本地球惑星科学連合2008年大会  2008.5 

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  • 有殻原生生物プランクトンの設計原理と宇宙構造物の形態創成.

    吉野 隆, 岸本直子, 松岡 篤, 木元克典, 栗原敏之, 松浦 執

    日本地球惑星科学連合2008年大会  2008.5 

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  • Radiolarian faunal characteristics in surface-subsurface waters of the Japan Sea off Sado Island.

    栗原敏之, 松岡 篤

    日本地球惑星科学連合2008年大会  2008.5 

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  • Toarcianの海洋無酸素事変と山口県に分布する豊浦層群におけるジュラ紀アンモノイド群集の多様性低下.

    中田健太郎, 松岡 篤

    日本地球惑星科学連合2008年大会  2008.5 

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  • フィリピン・ディマングレット島とマリノン島におけるトリアス―ジュラ紀層状チャート.

    二階堂崇, 松岡 篤, 尾上哲治, Zamoras, L.R

    日本地球惑星科学連合2008年大会  2008.5 

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  • マイクロCTデータより作製した有孔虫の拡大モデル International conference

    手嶋吉法, 松岡 篤

    第2回幾何学教材と視覚障害者の立体認識シンポジウム  2008.1 

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    Venue:産総研臨海副都心センター別館  

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  • 放散虫のぬいぐるみ

    松岡 篤, 友木屋絵理, 塩澤澄枝, 猪俣多喜, 福山智子, 菊地聡一郎, 樋口明子, 水垣圭子

    形の科学会第64回シンポジウム  2007.11  形の科学会

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  • ストライプ構造をもつ放散虫チャート.

    松岡 篤, 二階堂崇

    形の科学会第64回シンポジウム  2007.11  形の科学会

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  • Biometrical analysis on Middle Jurassic ammonoid Pseudoneuqueniceras Yokoyamai (Kobayashi & Fukada) and its related forms. International conference

    Matsuoka, A, Anso, J, Nakada, K, Terabe, K, Sato, T

    The 7th International Symposium, Cephalopods - Present and Past.  2007.9 

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    Venue:Sapporo.  

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  • Morphological study of Genus Protogrammoceras (Early Jurassic ammonoid) from the Toyora Group in Southwest Japan. International conference

    Nakada, K, Matsuoka, A

    The 7th International Symposium, Cephalopods - Present and Past.  2007.9 

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    Venue:Sapporo.  

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  • 山中白亜系に関する層序の再検討.

    寺部和伸, 佐藤和久, 松岡 篤

    日本地質学会第114年学術大会  2007.9  日本地質学会

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    Venue:北海道大学  

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  • 西南日本の下部ジュラ系豊浦層群西中山層におけるアンモナイト化石帯の国際対比.

    中田健太郎, 松岡 篤

    日本地質学会第114年学術大会  2007.9  日本地質学会

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    Venue:北海道大学  

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  • 関東山地風早峠地域における北部秩父帯付加体の層序と地質構造.

    小久保晋一, 松岡 篤

    日本地質学会第114年学術大会  2007.9  日本地質学会

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    Venue:北海道大学  

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  • 美濃帯南部坂祝セクションにおけるトリアス紀層状チャートの岩相層序と放散虫生層序.

    二階堂崇, 松岡 篤

    日本地質学会第114年学術大会  2007.9  日本地質学会

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    Venue:北海道大学  

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  • 顕生累代海洋プレートの赤道通過を知る方法

    松岡 篤

    日本地質学会第114年学術大会  2007.9  日本地質学会

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    Venue:北海道大学  

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  • 関東山地秩父累帯北帯上吉田層の珪質泥岩から産出したジュラ紀中世放散虫化石.

    小久保晋一, 松岡 篤

    日本古生物学会2007年年会  2007.6  日本古生物学会

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  • ジュラ系放散虫化石帯区分の改訂と主要放散虫種の垂直分布.

    松岡 篤

    日本古生物学会2007年年会  2007.6  日本古生物学会

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  • 18S rDNAに基づく放散虫とそれに共生する藻類の系統解析.

    湯浅智子, 真山茂樹, 松岡 篤, 高橋 修

    日本古生物学会2007年年会  2007.6  日本古生物学会

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  • 教育教材DVD:生きている放散虫.

    堀 利栄, 庵谷奈津子, 松岡篤, 瀬底放散虫観察会参加者一同

    日本古生物学会2007年年会  2007.6  日本古生物学会

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  • ジュラ系放散虫生層序研究の現状と展望.

    松岡 篤

    日本古生物学会2007年年会  2007.6  日本古生物学会

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  • 浮遊性二枚貝の海:上部トリアス系チャート・深海成石灰岩から産する薄殻二枚貝.

    尾上哲治, 松岡 篤

    日本古生物学会2007年年会  2007.6  日本古生物学会

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  • Water properties and radiolarian faunas in surface and subsurface waters of the Japan Sea in late September 2005, off Tassha, Sado Island, central Japan.

    Kurihara, T, Matsuoka, A

    日本古生物学会2007年年会  2007.6  日本古生物学会

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  • 愛媛県城川地域の上部ジュラ系今井谷層群下相層中の鳥巣式石灰岩岩塊産厚歯二枚貝について.

    佐野晋一, Skelton, P, 武井雅彦, 松岡 篤

    日本古生物学会2007年年会  2007.6  日本古生物学会

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  • 山中白亜系瀬林層(バレミアン階)からのテチス型二枚貝フォーナの産出と,その古生物地理学的意義.

    寺部和伸, 松岡 篤

    日本古生物学会2007年年会  2007.6  日本古生物学会

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  • 西南日本の下部ジュラ系豊浦層群西中山層におけるアンモナイト生層序区分の再検討.

    中田健太郎, 松岡 篤

    日本古生物学会2007年年会  2007.6  日本古生物学会

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  • 沖縄近海の東シナ海産放散虫の種多様性.

    松岡 篤

    形の科学会第63回シンポジウム  2007.6  形の科学会

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  • ジュラ紀アンモナイトPseudoneuqueniceras属の形態解析

    松岡 篤, 安曽潤子, 中田健太郎, 寺部和伸

    形の科学会第63回シンポジウム  2007.6  形の科学会

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  • 横断型プランクトン研究プロジェクトについて.

    岸本直子, 松岡 篤, 木元克典, 吉野 隆, 松浦 執

    形の科学会第63回シンポジウム  2007.6  形の科学会

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  • 関東山地風早峠地域における秩父累帯北帯の層序の再検討.

    小久保晋一, 松岡 篤

    日本地球惑星科学連合2007年大会  2007.5 

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    Venue:千葉幕張メッセ  

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  • 浮遊性有孔虫Orbulina universa d’Orbigny の生殖戦略:プロセスとその意味について.

    木元克典, 松岡 篤

    日本地球惑星科学連合2007年大会  2007.5 

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    Venue:千葉幕張メッセ  

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  • 顕生累代における遠洋域研究の展望

    松岡 篤

    日本地球惑星科学連合2007年大会  2007.5 

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    Venue:千葉幕張メッセ  

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  • 美濃帯南部坂祝セクションにおけるトリアス紀層状チャートの連続層序記録.

    二階堂崇, 松岡 篤

    日本地球惑星科学連合2007年大会  2007.5 

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    Venue:千葉幕張メッセ  

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  • North Palawan Block's Paleozoic-Mesozoic sedimentary sequences: Records of accretion events at the eastern region of the Tethyan realm during the Jurassic-Cretaceous time. International conference

    Zamoras, L.R, Matsuoka, A

    Second International Symposium on Geological Anatomy of East and South Asia: Paleogeography and Paleoenvironment in Eastern Tethys (IGCP 516)  2006.11 

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    Venue:Philippines  

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  • Updated radiolarian zonation and age assignment for the Jurassic in 2006. International conference

    Matsuoka, A

    Second International Symposium on Geological Anatomy of East and South Asia: Paleogeography and Paleoenvironment in Eastern Tethys (IGCP 516)  2006.11 

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    Venue:Philippines  

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  • 飼育放散虫の殻形態から中生代放散虫の捕食行動を推定する

    松岡 篤

    形の科学会第62回シンポジウム  2006.11  形の科学会

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    Venue:大阪大学  

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  • Feeding behavior of Jurassic radiolarians inferred from comparison in skeletal morphology with laboratory cultured radiolarians. International conference

    Matsuoka, A

    7th International Congress on the Jurassic System  2006.9 

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    Venue:Krakow, Poland  

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  • Revised radiolarian zonation for the entire Jurassic in the western Pacific and Japan. International conference

    Matsuoka, A

    7th International Congress on the Jurassic System  2006.9 

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    Venue:Krakow, Poland  

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  • The Pliensbachian/Toarcian boundary in the Lower Jurassic Toyora Group in southwest Japan. International conference

    Nakada, K, Matsuoka, A

    7th International Congress on the Jurassic System  2006.9 

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    Venue:Krakow, Poland  

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  • 2005年佐渡島達者沖の日本海における表層・亜表層海水の温度・塩分・クロロフィル鉛直分布と放散虫群集

    松岡 篤, 栗原敏之

    日本古生物学会2006年年会  2006.6  日本古生物学会

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    Venue:島根大学  

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  • Eco-system evolution of the pelagic realm in the Phanerozoic inferred from radiolarians. International conference

    Matsuoka, A

    The Second International Palaeontological Congress  2006.6 

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    Venue:Beijing, China  

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  • Radiolarian faunal transition of the seasonal thermocline layer in the Japan Sea during spring to summer, off Sado Island, central Japan. International conference

    Kurihara, T, Matsuoka, A

    The Second International Palaeontological Congress  2006.6 

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    Venue:Beijing, China  

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  • The importance of observational study of morden planktic foraminifera by culture experiments: an approach to understanding their life cycle. International conference

    Kimoto, K, Matsuoka, A

    The Second International Palaeontological Congress  2006.6 

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    Venue:Beijing, China  

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  • 多節Nassellaria(放散虫)の捕食行動の多様性と殻形態

    松岡 篤

    形の科学会第61回シンポジウム  2006.5  形の科学会

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    Venue:名古屋大学  

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  • Evolution of Phanerozoic radiolaria and marine eco-system International conference

    2006.5 

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Research Projects

  • 「化石種はどのように定義すべきか」パンタネリウム属(放散虫)による挑戦

    Grant number:20K04144  2020.4 - 2023.3

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    松岡 篤

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    Grant amount:\4290000 ( Direct Cost: \3300000 、 Indirect Cost:\990000 )

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  • Radiolarian evolution inferred from form and function

    Grant number:15K05329  2015.4 - 2018.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    Matsuoka Atsushi, KURIHARA Toshiyuki, YOSHINO Takashi, KISHIMOTO Naoko, ITO Tsuyoshi, OHKOUCHI Haruka, LI Xin

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    Grant amount:\4680000 ( Direct Cost: \3600000 、 Indirect Cost:\1080000 )

    Cretaceous closed Nassellarian genus Turbocapsula exhibits an evolutionary lineage, showing phylogenetic changes in skeletal morphology, which was clarified by our research in southern Tibet, China. Two species within recent Nassellarian genus Eucyrtidium show a variation in pore arrangement, which is a family-level difference in radiolarian taxonomy.
    The 15th International radiolarian meeting was held in Niigata in 2017. This meeting contributed not only to scientific field but also to outreach activities using enlarged models of radiolarian skeletons produced by macro-CT technique and 3D printing methods.

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  • Exploration of super-ocean : Oxygen and silicon stable isotopes of biogenic silica

    Grant number:18340156  2006 - 2008

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    MATSUOKA Atsushi, WATANABE Naoki

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    Grant amount:\13600000 ( Direct Cost: \11500000 、 Indirect Cost:\2100000 )

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  • ゲノム解析技術GP法をもちいた浮遊性原生生物における種概念の構築

    Grant number:17654100  2005 - 2006

    日本学術振興会  科学研究費助成事業 萌芽研究  萌芽研究

    松岡 篤, 西垣 功一

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    Grant amount:\3300000 ( Direct Cost: \3300000 )

    沖縄近海の東シナ海において1回の,佐渡島近海の日本海において3回のプランクトン採取を行った.沖縄の瀬底臨海実験所(琉球大学)および佐渡臨海実験所(新潟大学)において,Didymocyrtis, Dictyocoryne, Euchitonia, Eucyrtidiuum, Spongosphaera, Spongodiscus, Actinosphaera, Acanthodesmia, Pseudocubus, Pterocanium, Eucyrtidium属(放散虫),Globigerinoides属(有孔虫)を主対象とした浮遊性原生生物の生態観察を実施した.
    新潟大学大学院自然科学研究科に既設の走査型電子顕微鏡(日本電子 5300LV)を用いて,殻の画像を取得した.詳細な形態解析により,殻形態の種間関係や種内変異を把握した.
    埼玉大学でゲノム・プロフィリング(GP)法を実施し,Didymocyrtis, Dictyocoryne, Eucyrtidium属などのPolycystine放散虫とPhaeodaria・Acantharia放散虫との分子生物学的近縁度を求めた.
    研究成果を,日本地球惑星連合大会(2006年5月,千葉幕張メッセ),第61回形の科学会(2006年6月,名古屋大学),第2回万国古生物会議(2006年6月北京),日本古生物学会(2006年6月島根大学),第62回形の科学会(2006年11.月,大阪大学),などで発表した.論文としては,GP法の結果をBMC Genomics誌などに発表し,GP法が原生生物の種を識別するのにも有効であることを示した.

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  • Unified stratigraphy by means of Oxygen isotopes and microfossils for Paleozoic-Mesozoic siliceous deposits

    Grant number:14340148  2002 - 2004

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    MATSUOKA Atsushi, WATANABE Naoki

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    Grant amount:\14400000 ( Direct Cost: \14400000 )

    This project aims at unifying biostratigraphy by means of microfossils such as radiolarians and Oxygen isotope stratigaphy. The most important agenda for this project was to make up a laser microprobe analyzer composed of a laser unit and Oxygen purification lines. The analyzer has been completed at the end of the project term due to twice moves in connection to the renewal of an old building and the construction of a new building. However, the newly established analyzer is much more useful than originally planed because it produces not only Oxygen isotopes but also Silicon isotopes.
    Oxygen isotopes of deep sea siliceous deposits obtained from the Pacific during ODP Leg 129 were measured by using a laser microprobe analyzer in the Geological Survey of Japan before the analyzer in Niigata University was set up. A preliminary result indicates that Upper Jurassic to Lower Cretaceous stratigraphy by means of Oxygen isotope and radiolaria is successfully unified.
    Radiolarian biostratigraphic and micropaleontologic researches were carried out in the Mino and Chichibu Terranes, Southwest Japan. Scientific results on radiolarian paleontology and stratigraphy came from Southern Tibet in China and the North Palawan Block in the Philippines. Pelagic biogenic siliceous rocks have been collected systematically from Switzerland, Italy and Slovenia in the European Alps. These samples will be used for Oxygen and Silicon isotope measurements in the near future.

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  • 顕生累代海洋環境の解明をめざす国際共同研究のための企画調査

    Grant number:12894012  2000

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    松岡 篤, 指田 勝男, 竹村 厚司, 相田 吉昭, 佐野 弘好, 大藤 茂

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    Grant amount:\3300000 ( Direct Cost: \3300000 )

    平成12年6月に兵庫県立博物館において開催された第7回放散虫研究集会(参加者約60人)では,第9回InterRadを目前に控え,国際共同研究の活性化に向けた情報交換を行った.この研究集会の成果は,大阪微化石研究会の特別号として出版される予定である(竹村厚司・古谷裕編集).9月には,アメリカ合衆国カリフォルニア州で第9回InterRadが開催され,本基盤研究メンバーの大半が参加し,国際共同研究の推進に努めた.10月には,宇都宮大学で企画調査会議を開き,平成13年度から発足する特定領域創設に向けて具体的な議論を行った.また,同大学に設置されている,国際深海底掘削計画(ODP)の微化石リファレンスセンターサテライト研究室の見学を行うとともに,陸域の試料をも扱った研究・保管施設の構想について議論した.11月には,特定領域研究(B)「パンサラサ-テチスの古海洋学-時間・空間座標のリファレンス構築」(代表者:松岡篤)の申請を行った.現在活動中の顕生累代海洋環境研究に関わる海外地質調査の研究紹介を目的とした印刷物の出版を計画し,兵庫(6月),宇都宮(10月),茨城(平成13年1月)で編集会議をもった.この印刷物は日本古生物学会から,古生物学トピックスNo.2「パンサラサ-テチスの古海洋学-グローバル・フィールド・サイエンスへの招待」として,平成13年6月に出版される予定である(松岡篤編集).また,本研究の一環として,平成13年6月に開催される日本古生物学会年会において,「パンサラサ-テチスの古海洋学」を企画した(世話人:松岡篤・相田吉昭・佐野弘好).

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  • Paleoceanography of the East Tethys

    Grant number:10041114  1998 - 1999

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A).  Grant-in-Aid for Scientific Research (A).

    MATSUOKA atsushi, KOBAYASHI Kenta

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    Grant amount:\10800000 ( Direct Cost: \10800000 )

    Sedimentological and micropaleontological analyses on siliceous sediments distributed in and around the Yarlung Zangpo Suture Zone, southern Tibet, reveal that these siliceous sediments represent a pelagic environment and yield radiolarian fossils ranging Middle Triassic to Early Cretaceous in age. The Middle Triassic age is older than the previously accepted timing (Late Triassic - Jurassic) of the Gondwana - Lhasa Block break-up. The Xialu Chert, one of our primary target, is dated as Middle Jurassic to Early Cretaceous, recording more than 50 m.y. pelagic sedimentation. The accretionary event of the Xialu Chert took place in middle Cretaceous time.
    Structural analysis on the Xialu Chert makes it clear that the siliceous sediments record pre-collisional strike-slip deformation due probably to accretionary processes. The mode of occurrence and petrological-geochemical analyses of basaltic rocks intercalated with siliceous sediments show that these are intrusive (sills) and have features of oceanic island origin.
    Siliceous sediments are distribeted in rather narrow areas of southern Tibet at present. They have originally been accumulated in different oceanic settings which were far from each other. Paleobiogeographic analysis of radiolaria can clarify a relative position of the sedimentary basins. The latest Jurassic radiolarian assemblage in the Xialu Chert is similar to that in the same-aged northern middle lattitude in faunal composition.

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  • Estimation of accretionary complex growth by micropaleontological mapping

    Grant number:09440178  1997 - 1999

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    MATSUOKA Atsushi

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    Grant amount:\6000000 ( Direct Cost: \6000000 )

    The oceanic plate stratigraphy (OPS) of different tectonostratigraphic units is compared with 3-5 times accuracy by using a framewok of Jurassic-Lower Cretaceous radiolarian zonation and its numerical age callibration of Matsuoka (1995). A tectonostratigraphic unit division for the Chichibu composite terrane is poroposed on the basis mainly of lithofacies. The OPSs of the Kamiyoshida Unit and Kashiwagi Unit in the Northern Chichibu terrane are similar to those of the Togano and Sambosan Unit in the Southern Chichibu Terrane, respectively. Some critical differences in OPS of the above-mentioned pair of the tectonositratigraphic units are also recognized. This indicates that the Nothern Chichibu and Southern Chichibu terranes were formed by the subduction of the same oceanic plate along a single subduction zone at laterally distant places and they were juxtaposed in later tectonic events characterized by strike-slip movements. Comparison of OPSs among Jurassic accretionary complexes in Southwest Japan suggests that the main strike-slip dislocation took place along the Kurosegawa Tectonic Zone rather than the Median Tectonic Line.
    The Pacific-Japan radiolarian zonal scheme is also applicable to accretionary complexes of the Yarlung Zangbo Suture Zone in southern Tibet, of the North Palawan Block in the Philippines, and of Sikhote Alin in Russian Far East. Detailed radiolarian biostratigraphic research on Upper Jurassic interval at ODP Site 801 in the western Pacific reveals that two zonal schemes proposed independently from Pacific-Japan and North America are well correlated with each other.

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  • ジュラ紀付加体の比較による黒瀬川ナップの検証

    Grant number:07740399  1995

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    松岡 篤

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    Grant amount:\900000 ( Direct Cost: \900000 )

    愛媛県大洲地域の野外地質調査を実施し,北部秩父テレーン,黒瀬川テレーン,南部秩父テレーンの分布状況および構造関係を明らかにした.従来,この地域の秩父帯の地帯区分は不明確であったが,各テレーンが北傾斜の低〜中角度衡上断層で境されることが判明した.このことは,南部秩父テレーンと北部秩父テレーンが黒瀬川テレーンの構造的下位でつながっていないことを意味する.
    南部秩父テレーンについては放散虫化石の産出記録が豊富で,海洋プレート層序の復元が行えるが,北部秩父テレーンは変成作用を被っており年代決定に耐える放散虫化石を得ることができなかった.しかし,調査地域東方では泥質岩より,前期ジェラ紀の放散虫化石が得られており,ジェラ紀新世ないし白亜紀古世の砕屑岩からなる南部秩父テレーンとは明瞭に年代差があることがわかる.このことは,南部秩父テレーンと北部秩父テレーンとでは,付加体の形成時期が異なることを示している.
    テレーン間の構造関係および放散虫化石による年代データから,四国西部地域では,黒瀬川テレーンナップ説は成立しない可能性が高い.今後,北部秩父テレーンについて放散虫化石の抽出に努め,海洋プレート層序の詳細な復元が必要である.また,他地域の秩父帯においても同様の検討を行って行きたい.
    なお,本研究の成果の一部は,平成8年4月に東北大学で開催される日本地質学会において発表する予定である.

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  • 改訂した放散虫生層序区分をもちいた鳥巣層群および相当層の対比

    Grant number:06740400  1994

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    松岡 篤

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    Grant amount:\900000 ( Direct Cost: \900000 )

    1.四国西端部の南部秩父テレーンの野外地質調査を実施し,鳥巣層群相当層の地質図を作成した.また,放散虫化石用の岩石試料を採取・処理し,同層からの放散虫化石の産出を確認した.この成果は,鳥巣層群相当層の年代対比を行ううえで基礎的なデータとなる.
    2.ジュラ紀末に栄えた放散虫Vallupus類についての世界各地からの産出データをレビューし,同類の古生物地理を明らかにした.それぞれの試料の年代位置づけについては,改訂した放散虫生層序区分をもちいた.鳥巣層群を含む日本の上部ジュラ系からの放散虫化石の産出記録などから,Vallupus類の生息温度の見積りを行った.この研究の成果は,古地理・古気候・古生態学の専門誌に発表予定である.
    3.日本のジュラ・白亜紀境界を含む地層(鳥巣層群を含む)の年代を,改訂した放散虫生層序の枠組みの中に位置づけ,地層の対比を行った.これは,当該層準の深海相および陸棚相を単一の化石帯区分に位置づけたはじめての研究である.この成果は白亜紀研究の専門誌に発表予定である.
    4.有人潜水艇"しんかい6500"により,マリアナ海溝の海側斜面から得られたチャートおよび凝灰岩の年代を,改訂した放散虫生層序区分をもちいて明らかにした.一部の岩石は鳥巣層群と同年代であることが明らかになった.この研究の成果は,JAMSTEC深海研究に掲載されている.

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  • 放散虫の殼形成に関する飼育実験

    Grant number:04854089  1992

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    松岡 篤

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    Grant amount:\800000 ( Direct Cost: \800000 )

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  • ジュラ紀放散虫群集の全的把握

    Grant number:02740392  1990

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    松岡 篤

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    Grant amount:\900000 ( Direct Cost: \900000 )

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  • 西南日本外帯に分布する中・古生代礫岩中のチャート礫の年代研究

    Grant number:63740450  1988

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    松岡 篤

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    Grant amount:\900000 ( Direct Cost: \900000 )

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  • ジュラ紀放散虫の生層序学的,古生物地理学的研究

    Grant number:61790196  1986 - 1987

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    松岡 篤

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    Grant amount:\1920000 ( Direct Cost: \1920000 )

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