[B-PT05] Biotic History

convener:Isao Motoyama(Faculty of Science, Yamagata University), Takao Ubukata(Division of Geology & Mineralogy, Department of Earth & Planetary Sciences, Kyoto University), Kazuyoshi Moriya(Department of Earth Sciences, Faculty of Education and Integrated Arts and Sciences, Waseda University)

The Biotic History session covers all aspects of ancient life and the history of biosphere through the geologic time. The study of ancient life is essential for unveiling mysteries of our planet earth. It also provides evidence for evolution of oceans, continents and island arcs. Modern progress in this field has been enhanced by interdisciplinary collaboration with allied sciences, such as paleoceanography and evolutionary biology. Our session intends to be a hub of communication amongst all earth scientists studying the biosphere; we welcome biological and biogeochemical approaches toward the understanding of the history of life.

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[BPT05-P01] Chemostratigraphy and paleoenvironmental reconstruction of the Ediacaran-Cambrian section in Khubsugul Group, northern Mongolia

*Hatena Osawa¹, Tatsuo Oji¹, Hideko Takayanagi², Pedro J. Marenco³, Koichi Mimura¹, Sersmaa Gonchigdorj⁴, Kano onodera¹ (1.Nagoya University, 2.Tohoku University, 3.Bryn Mawr College, 4.Mongolian University of Science and Technology)

[BPT05-P02] Planktic foraminiferal biostratigraphy across the mid-Cretaceous Oceanic Anoxic Events

Soichi Shirakawa³, Ryo Nakanishi², *Kazuyoshi Moriya¹ (1.Department of Earth Sciences, Faculty of Education and Integrated Arts and Sciences, Waseda University, 2.Department of Earth Sciences, School of Education, Waseda University, 3.Department of Earth Sciences,Resources and Environmental Engineering, Graduate School of Creative Science and Engineering, Waseda University)

[BPT05-P03] Organic carbon isotope stratigraphy across the Cenomanian/Turonian boundary at northern Atlantic

Yasuko Miyakura², *Kazuyoshi Moriya¹, Akiko S. Goto³, Takashi Hasegawa³ (1.Department of Earth Sciences, Faculty of Education and Integrated Arts and Sciences, Waseda University, 2.Department of Earth Sciences,Resources and Environmental Engineering, Graduate School of Creative Science and Engineering, Waseda University, 3.Faculty of Earth Science and Civil Engineering, Institute of Science and Engineering, Kanazawa University)

[BPT05-P04] The analysis of periostracum on Ammonoid shells from Cretaceous Yezo Group

*Hideharu Kohno¹, Haruyoshi Maeda¹ (1.Kyushu University)

[BPT05-P05] A functional-morphospace analysis of allometrically growing ammonoids

*Takao Ubukata¹ (1.Department of Geology & Mineralogy, Kyoto University)

[BPT05-P06] Phylogenetic aspect of ontogenetic trajectory of whorl shape in ammonoids

*Takao Ubukata¹, Fumitaka Katsuno¹ (1.Department of Geology & Mineralogy, Kyoto University)

[BPT05-P07] Evaluation of the metabolic status in extant Amniota based on nasal structures

*Seishiro Tada¹, Takanobu Tsuihiji^1,2 (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Department of Geology and Paleontology, National Museum of Nature and Science)