[B-CG07] Frontier in Biology and Paleobiology of Fossilized Micro-organisms

Tue. May 27, 2025 9:00 AM - 10:30 AM 301B (International Conference Hall, Makuhari Messe)

convener:Rie Hori, S.(Department of Earth Science, Faculty of Science, Ehime University), Yurika Ujiie(Kochi University), Hidetaka Nomaki(JAMSTEC), Chairperson:Rie Hori, S.(Department of Earth Science, Faculty of Science, Ehime University), Hidetaka Nomaki(JAMSTEC), Yurika Ujiie(Kochi University)

The aim of this session opens new window in interdisciplinary research for Earth science and Biology based on microfossils and fossilized micro-organisms. Microfossils, mostly unicellular eukaryotes, play key roles in multiple fields of Earth science. We welcome your presentation on evolution, ecology, biochemistry, biomonitoring, and general biological subjects of microfossils and organisms.

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9:00 AM - 9:15 AM

[BCG07-01] Investigation of a Ladinian (Middle Triassic) humid event in pelagic deep-sea sedimentary rocks of Panthalassa

*Takuma Shiohara¹, Shun Muto², Tetsuji Onoue³ (1.Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University, 2.Geological Survey of Japan, AIST, 3.Department of Earth and Planetary Sciences, Faculty of Sciences, Kyushu University)

9:15 AM - 9:30 AM

[BCG07-02] The Jurassic-Cretaceous boundary and the Mariana radiolarian fauna

*Atsushi Matsuoka¹ (1.Department of Geology, Faculty of Science, Niigata University)

9:30 AM - 9:45 AM

[BCG07-03] Provisional diatom stratigraphy of Miocene–Pliocene lacustrine sediments from Western Snake River Basin, NE USA

*Megumi Saito-Kato¹, Tatsuya Hayashi², Yuki Haneda³, Willam L. Krebs (1.Department of Geology and Paleontology, National Museum of Nature and Science, 2.Department of Environmental Changes, Faculty of Social and Cultural Studies, Kyushu University, 3.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology)

9:45 AM - 10:00 AM

[BCG07-04] Survival of tropical larger foraminifera in the Japan Sea during the snowy midwinter season

*Hiroki Hayashi¹ (1.Interdisciplinary Faculty of Science and Engineering, Shimane University)

10:00 AM - 10:15 AM

[BCG07-05] Historical analysis of genetic diversity and determinants of establishment success in alien Daphnia of the ancient Lake Biwa: insights from sedimentary archives.

*Narumi Tsugeki¹, Isana Hashimoto², Kai Nakane², Mie N. Honjo³, Kimiko Uchii⁴ (1.Matsuyama University, 2.Ehime University, 3.Kyoto University, 4.Osaka Ohtani University)

10:15 AM - 10:30 AM

[BCG07-06] Morphological identification of cryptic species in a planktic foraminifer

*Issui Ikuma¹, Katsunori Kimoto², Yurika Ujiie³ (1.Graduate School of intergrated Arts and Sciences, Kochi University, 2. JAMSTEC, 3.Marine Core Research Institute, Kochi University)

Session information