[B-CG07] Phanerozoic biodiversity change: radiation and extinction

convener:Yukio Isozaki(Department of Earth Science and Astronomy, Multi-disciplinary Sciences - General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo), Yusuke Sawaki(The University of Tokyo)

This session explores the latest progress in the paleobiodiversity studies, particularly about the final 500 m.y.-long history of life during the Phanerozoic. All paleo-environmental, stratigraphic, and paleotological studies are welcome.

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[BCG07-07] Upper Triassic (Rhaetian) conodont biostratigraphy of the Panthalassa Ocean and the final extinction of conodonts at the end-Triassic

*Tetsuji Onoue¹, Kanna Yamasaki², Yuki Tomimatsu^2,1, Yixing Du³, Daisuke Yamashita⁴, Katsuhito Soda², Manuel Rigo³ (1.Kyushu Univ., 2.Kumamoto Univ., 3.Univ. Padova, 4.Satsumasendai City Office)

[BCG07-08] The Carbon-Silicon cycle coupling: insight from in situ δ³⁰Si in Mesozoic radiolarites.

*Maximilien Bole¹, Masayuki Ikeda¹, Rie Hori, S.², Peter O. Baumgartner³ (1.Department of Earth and Planetary Sciences, Tokyo University, Japan, 2.Department of Earth Science, Ehime University, Japan, 3.Institute of Earth Science (ISTE), Université de Lausanne, Switzerland)

[BCG07-09] Geology and paleontology of the Tetori Group distributed in the Shokawa area, Gifu prefecture

*WATABE SERIE¹, Sachiko Agematsu¹ (1.University of Tsukuba)

[BCG07-10] Marine Os isotopic evidence for multiple submarine volcanic activities during Aptian, mid-Cretaceous

*Hironao Matsumoto¹, Junichiro Kuroda¹, Rodolfo Coccioni², Fabrizio Frontalini² (1.Department of Earth and Planetary Science, The University of Tokyo, 2.DiSPeA, University of Urbino)

[BCG07-11] Cu- or Ag-enriched grains in the K-Pg boundary clays: New evidence for acid rain immediately after the meteorite impact

*Teruyuki Maruoka¹, Yoshiro Nishio², Tetsu Kogiso³, Katsuhiko Suzuki⁴ (1.University of Tsukuba, 2.Kochi University, 3.Kyoto University, 4.Japan Agency for Marine-Earth Science and Technology)

Discussion (5:15 PM - 5:30 PM)