| Biogeosciences(B) |
| Session Sub Category |
Paleontology(PT)
|
| Session ID |
B-PT06
|
| Title |
Phanerozoic biodiversity change: Extinction and diversification
|
| Short title |
Phanerozoic biodiversity change
|
| Convener |
Name |
Yukio Isozaki
|
| Affiliation |
Department of Earth Science and Astronomy, Multi-disciplinary Sciences - General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo
|
|
Co-convener
|
Name |
Yusuke Sawaki
|
| Affiliation |
Tokyo Institute of Technology
|
| International Symposium |
No request
|
| Language |
Japanese
|
| Scope |
Biotic evolution was the consequence of repeated extinction and following diversification in the past, which was caused by large-scale environmental changes, in particular, by extremely rapid and drastic forcing that changed the environments of the biosphere. Irreversible and episodic changes in material cycling on the planet and/or in galactic cosmic radiation are nominated as major driving mechanism for the alleged rapid, large-scale environmental perturbations. The biodiversity change in the fossiliferous Phanerozoic record is characterized by multiple mass extinctions within the long-term trend of diversity increase. Nonetheless, each extinction event has been explained rather in ad hoc manner, without any universal explanation. This session discusses the Phanerozoic biodiversity change under a new light of the recent progress in geology.
|
| Type of presentation |
Oral and Poster presentation
|
| Invited papers |
|
|