气候变化领域集成服务门户(CCPortal): Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China

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DOI	10.1016/j.earscirev.2020.103329
	Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China
	Liu X.; Song H.; Bond D.P.G.; Tong J.; Benton M.J.
发表日期	2020
ISSN	00128252
卷号	209
英文摘要	The Permian-Triassic mass extinction, the greatest biotic crisis in Earth history, triggered the complete replacement of ecosystems with the 5–10% surviving species giving rise to the Mesozoic fauna. Despite a long history of systematic studies on Permian-Triassic foraminifera, there have been few investigations into spatial and temporal patterns of survivorship and evolution during this critical interval. We interrogate a high-resolution data set comprising newly obtained and previously published foraminiferal data (including 13,422 specimens in 173 species in 62 genera) from seven well-studied Permian-Triassic successions that record a transect of platform to basin facies in South China. Shallow-water settings seen at the Cili and Dajiang sections suffered a single-pulse, sudden extinction with high extinction rates at the end of the Palaeofusulina sinensis Zone; deeper-water and slope environments seen at Liangfengya and Meishan experienced a two-pulse extinction in the Clarkina yini and Isarcicella staeschei zones; basinal settings, seen at Shangsi, Gujiao and Sidazhai, record a single, less devastating extinction pulse in and slightly above the C. yini Zone. In the Late Permian, foraminiferal diversity was greatest on the shallow platforms, where 76.4% of species recorded in our study lived. The two pulses of the Permian-Triassic extinction prompted this foraminiferal diversity hotspot to move to deeper slope settings (comprising 75.6% of contemporary species) and finally basinal settings (comprising 88.8% of species). We propose that foraminifera migrated to deeper water to avoid overheating and toxicity in shallow waters that were driven by the emplacement of the Siberian Traps and coeval volcanic activities around the Paleotethys Ocean. This study provides a methodological framework for investigating survival mechanisms for foraminifers and other taxonomic groups during mass extinction events. © 2020 Elsevier B.V.
关键词	Deep-ward migration Foraminifera Selective extinction Spatial-temporal evolution Survival strategy
英文关键词	evolution; foraminifera; mass extinction; migration; Permian-Triassic boundary; survivorship; taxonomy; temporal evolution; China; Clarkina; Foraminifera; Isarcicella staeschei; Palaeofusulina
语种	英语
来源期刊	Earth Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203791
作者单位	State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan, 430074, China; Department of Geography, Geology and Environment, University of Hull, Hull, HU6 7RX, United Kingdom; School of Earth Sciences, University of Bristol, Bristol, BS8 1RJ, United Kingdom
推荐引用方式 GB/T 7714	Liu X.,Song H.,Bond D.P.G.,et al. Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China[J],2020,209.
APA	Liu X.,Song H.,Bond D.P.G.,Tong J.,&Benton M.J..(2020).Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China.Earth Science Reviews,209.
MLA	Liu X.,et al."Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China".Earth Science Reviews 209(2020).