Biogeosciences (B)
Session Sub-categoryPaleontology(PT)
Session IDB-PT05
TitleBiotic History
Short TitleBiotic History
Main Convener NameIsao Motoyama
AffiliationDepartment of Earth and Environmental Sciences, Yamagata University
Co-Convener 1NameTakao Ubukata
AffiliationDivision of Geology & Mineralogy, Department of Earth & Planetary Sciences, Kyoto University
Co-Convener 2NameKazuyoshi Moriya
AffiliationDepartment of Earth Sciences, Faculty of Education and Integrated Arts and Sciences, Waseda University
Session LanguageJ
ScopeThe 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.
Presentation FormatOral and Poster presentation
TimePresentation NoTitlePresenterAbstract
Oral Presentation May 30 PM1
13:45 - 14:00BPT05-01Cause of accelerated evolution of Earth’s life; four-layered underground robust bio-communities played a critical role for the accelerated genome evolution as a response of mass extinctionShigenori Maruyama
14:00 - 14:15BPT05-02Amino acid composition in molluscan shells and its relation to taxa and shell microstructure ~ Toward reconstruction of ancient trophic level using compound specific isotope analysis of amino acids ~Naoki Yugami
14:15 - 14:30BPT05-03Relation of shell form to rocking motion in planispiral cephalopodsTakao Ubukata
14:30 - 14:45BPT05-04Paleoenvironment aross the Meddle Eocene Climatic OptimumKazuyoshi Moriya
14:45 - 15:00BPT05-05Reconstruction of the North Pacific subtropical gyre from the Middle to Late Miocene as inferred from radiolarian assemblagesShin-ichi Kamikuri
15:00 - 15:15BPT05-06Fossilization processes of Pliocene tree fossils from the Yasu River, Shiga Prefecture, Japan: Organic geochemical approachJinya Nakamura
Presentation NoTitlePresenterAbstract
Poster Presentation May 30 PM2
BPT05-P01Simultaneous observations of both hard and soft tissues of Oulastrea crispata (Cnidaria: Scleractinia)Rie Tajiri
BPT05-P02Coral-based paleoenvironmental interpretation and depositional history of the late middle Pleistocene Minatogawa Formation, southern Okinawa-jima, JapanRiho Tomatsu
BPT05-P03Calcareous nannofossil biostratigraphy and oxygen isotope stratigraphy of the lower part of the Pleistocene formation distributed in the central part of the Pacific side of JapanDaisuke Kuwano
BPT05-P04Cretaceous and Miocene geology and paleontology of the Tounai River region, Biratori, HokkaidoIsao Motoyama
BPT05-P05Response of benthic organisms to oceanic anoxic event in the Early Jurasic (T-OAE): Insights from quantitative analysis of the trace fossil Phycosiphon from the Nishinakayama Formation, Toyora GroupKyosuke Kitabatake