气候变化领域集成服务门户(CCPortal): Phytoplankton (acritarch) community changes during the Permian-Triassic transition in South China

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DOI	10.1016/j.palaeo.2018.09.033
	Phytoplankton (acritarch) community changes during the Permian-Triassic transition in South China
	Lei Y.; Shen J.; Algeo T.J.; Servais T.; Feng Q.; Yu J.
发表日期	2019
ISSN	0031-0182
起始页码	84
结束页码	94
卷号	519
英文摘要	The Permian-Triassic boundary (PTB) at ~252 Ma coincided with the largest mass extinction of the Phanerozoic. Previous research on diversity and abundance changes during this event has focused mainly on the terrestrial vertebrate and marine invertebrate records, with little attention to date given to the phytoplankton that form the base of the marine trophic web. Although the fossil record of Permian-Triassic phytoplankton is relatively poor owing to preservational factors, sufficient material is now available to evaluate secular changes in acritarch communities through the mass extinction interval. In this contribution, we evaluate diversity and abundance changes among 8 genera and 25 species of acritarchs, including large-spherical, small-spherical, long-spined, and short-spined forms ranging from the Upper Permian Clarkina yini to the Lower Triassic Isarcicella isarcica zones in eight sections representing different sedimentary facies of the South China Craton. Acritarchs declined sharply from the latest Permian (C. meishanensis Zone) to the earliest Triassic (I. staeschei Zone), with extinctions and abundance changes concentrated at two horizons, the first in the latest Permian C. meishanensis Zone (Bed 25 at Meishan D) and the second in the earliest Triassic I. staeschei Zone (Bed 28 at Meishan D), mirroring the pattern of mortality among marine invertebrates. Differences in the nature and intensity of these two extinction episodes (the second having a relatively larger effect on acritarch community composition) suggest that these events may have resulted from different types of environmental perturbations. © 2018 Elsevier B.V.
英文关键词	Mass extinction; Paleoproductivity; Permian-Triassic boundary; Primary producer; Volcanic ash
语种	英语
scopus关键词	acritarch; community composition; community dynamics; food web; fossil record; invertebrate; marine environment; mass extinction; micropaleontology; mortality; paleoproductivity; Permian-Triassic boundary; phytoplankton; primary production; sedimentary structure; vertebrate; volcanic ash; China; Meishan; South China Block; Zhejiang; Acritarcha; Clarkina; Invertebrata; Isarcicella isarcica; Vertebrata
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151038
作者单位	State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan, Hubei 430074, China; The Department of Land Resource of Shanxi Province, 3 Wangjing Road, Taiyuan, Shanxi 030024, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, Hubei 430074, China; Department of Geology, University of Cincinnati, Cincinnati, OH 45221-0013, United States; UMR 8198 Evo-Eco-Paleo, CNRS-Université de Lille, Villeneuve d'Ascq, F-59655, France
推荐引用方式 GB/T 7714	Lei Y.,Shen J.,Algeo T.J.,et al. Phytoplankton (acritarch) community changes during the Permian-Triassic transition in South China[J],2019,519.
APA	Lei Y.,Shen J.,Algeo T.J.,Servais T.,Feng Q.,&Yu J..(2019).Phytoplankton (acritarch) community changes during the Permian-Triassic transition in South China.Palaeogeography, Palaeoclimatology, Palaeoecology,519.
MLA	Lei Y.,et al."Phytoplankton (acritarch) community changes during the Permian-Triassic transition in South China".Palaeogeography, Palaeoclimatology, Palaeoecology 519(2019).