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DOI	10.1016/j.palaeo.2019.109467
	New geochemical and palaeontological data from the Permian-Triassic boundary in the South African Karoo Basin test the synchronicity of terrestrial and marine extinctions
	Botha J.; Huttenlocker A.K.; Smith R.M.H.; Prevec R.; Viglietti P.; Modesto S.P.
发表日期	2020
ISSN	0031-0182
卷号	540
英文摘要	The end-Permian mass extinction (EPME) is widely recognised as the largest mass extinction in Phanerozoic history. In marine strata the main extinction event is well constrained, and has been radiometrically-dated to an interval of some 60 kyr, approximately 251.9 million years ago. However, the age and duration of the EPME in the terrestrial realm, as well as its possible synchronicity with that of the marine realm, is debated. Here, we shed light on issues pertaining to the identification and position of the terrestrial EPME in southern Africa. Using recently collected sedimentological (facies sequences), palaeontological (biostratigraphic ranges), geochemical (stable isotope analyses) and detrital zircon (ID-TIMS) data from a new site in the Xhariep District of the South African Karoo Basin, we demonstrate that the Permian-Triassic boundary sequence containing evidence for phased tetrapod extinctions is time equivalent with the marine extinction. We conclude that the terrestrial EPME recorded in the Karoo may be regarded as essentially synchronous with the EPME currently defined in the marine realm, and was likely the result of the same volcanically-induced atmospheric disturbances. This study describes the first single, vertical succession of vertebrate and plant fossils that span the terrestrial Permian-Triassic boundary that are also well-constrained both by relative (stable isotopes) and absolute (detrital zircon geochronology) dating methods. © 2019 Elsevier B.V.
英文关键词	Early Triassic; End-Permian; Gondwana; Mass Extinction
语种	英语
scopus关键词	biostratigraphy; Gondwana; mass extinction; paleobiogeography; Permian-Triassic boundary; Phanerozoic; stable isotope; tetrapod; Karoo; Tetrapoda; 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/150620
作者单位	National Museum, PO Box 266, Bloemfontein, 9300, South Africa; Department of Zoology and Entomology, University of the Free State, Bloemfontein, 9300, South Africa; Department of Integrative Anatomical Sciences, University of Southern California, Los Angeles, CA 90033, United States; Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, 2050, South Africa; Karoo Palaeontology, Iziko South African Museum, Cape Town, 8000, South Africa; Department of Earth Sciences, Albany Museum, Makhanda, 6139, South Africa; Department of Botany, Rhodes University, Makhanda, 6140, South Africa; Integrative Research Center, Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, IL 60605, United States; Department of Biology, Cape Breton University, Sydney, NS, Canada
推荐引用方式 GB/T 7714	Botha J.,Huttenlocker A.K.,Smith R.M.H.,et al. New geochemical and palaeontological data from the Permian-Triassic boundary in the South African Karoo Basin test the synchronicity of terrestrial and marine extinctions[J],2020,540.
APA	Botha J.,Huttenlocker A.K.,Smith R.M.H.,Prevec R.,Viglietti P.,&Modesto S.P..(2020).New geochemical and palaeontological data from the Permian-Triassic boundary in the South African Karoo Basin test the synchronicity of terrestrial and marine extinctions.Palaeogeography, Palaeoclimatology, Palaeoecology,540.
MLA	Botha J.,et al."New geochemical and palaeontological data from the Permian-Triassic boundary in the South African Karoo Basin test the synchronicity of terrestrial and marine extinctions".Palaeogeography, Palaeoclimatology, Palaeoecology 540(2020).