Global cooling drove diversification and warming caused extinction among Carboniferous-Permian fusuline foraminifera.

Authors

Shu-Han Zhang, Ying-Ying Zhao, Yu-Kun Shi, Qiang Fang, Xiang-Dong Wang, Jun-Xuan Fan, Yi-Chun Zhang, Dong-Xun Yuan, Yue Wang, Fei-Fei Zhang, Huai-Chun Wu, Douglas H Erwin, Charles R Marshall, Shu-Zhong Shen

Published in

Science advances. Volume 11. Issue 25. Pages eadv2549. Jun 20, 2025. Epub Jun 20, 2025.

Abstract

The fossil record provides the only direct evidence of changes in biodiversity over time. Patterns in more inclusive taxonomic levels (e.g., families and orders) often become more complex because of interactions between biological traits and environmental conditions across different evolutionary lineages. Using supercomputing and artificial intelligence algorithms, we analyzed a high-resolution global dataset of fusuline foraminifera-the most diverse marine fossil group from the Carboniferous to the Permian (~340 to 252 million years ago)-at an unprecedented temporal resolution of <45 thousand years. Our unbinned diversity reconstruction reveals unexpectedly simple diversity dynamics in this exceptionally well-preserved clade. We identify two (and likely a third) truncated exponential diversifications and four major diversity declines. During this interval, long-term cooling consistently promoted biodiversification, whereas warming events were closely linked to extinctions. These findings imply that the current rapid global warming, driven by anthropogenic CO₂ emissions, represents a critical threat to modern ecosystems.

PMID:
40540564
Bibliographic data and abstract were imported from PubMed on 21 Jun 2025.

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