气候变化领域集成服务门户(CCPortal): Oxygen isotopes and ecological inferences of Permian (Guadalupian) tetrapods from the main Karoo Basin of South Africa

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DOI	10.1016/j.palaeo.2019.109485
	Oxygen isotopes and ecological inferences of Permian (Guadalupian) tetrapods from the main Karoo Basin of South Africa
	Rey K.; Day M.O.; Amiot R.; Fourel F.; Luyt J.; Van den Brandt M.J.; Lécuyer C.; Rubidge B.S.
发表日期	2020
ISSN	0031-0182
卷号	538
英文摘要	The Abrahamskraal Formation of South Africa has a diverse middle Permian (Guadalupian) fossil tetrapod fauna comprising largely basal therapsids and pareiasaurian parareptiles. Knowledge on the paleoecology of these animals is limited because inferences of many ecological traits in mid-Permian tetrapods are based on deductions from morphology. While it is widely accepted that the rhinesuchid amphibians were aquatic, the ecological lifestyle of pareiasaurs and dinocephalian therapsids remains uncertain. To investigate the ecological roles of different middle Permian tetrapod taxa we studied stable oxygen isotope compositions of phosphate from teeth and bones as a proxy for water dependence. Our results reveal similar δ18Op values for pareiasaurs, the dinocephalian Anteosaurus, and therocephalians, with a range of values similar to those of extant terrestrial species. The consistent δ18Op values for pareiasaurs strengthen our interpretation of a terrestrial lifestyle for these parareptiles, but the lower Anteosaurus δ18Op values might question the interpretation and a larger sample size may result in a more conclusive outcome. These results conclude the debate on the ecology of middle Permian pareiasaurs. A terrestrial lifestyle is applicable only to the middle Permian species and a different lifestyle is possible for pareiasaurs species that lived after the end Capitanian extinction. © 2019 Elsevier B.V.
英文关键词	Abrahamskraal Formation; Anteosaurus; Paleoecology; Pareiasaur; Phosphate apatite
语种	英语
scopus关键词	apatite; extinction risk; isotopic composition; mammal; oxygen isotope; paleoecology; Permian; phosphate; Karoo; South Africa; Amphibia; Animalia; Dinocephalia; Pareiasauria; Tetrapoda; Therapsida
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/150649
作者单位	Evolutionary Studies Institute, School of Geosciences, University of the Witwatersrand, P.O. WITS 2050, Johannesburg, South Africa; Department of Earth Sciences, Natural History Museum, Cromwell Road, London, SW7 5BD, United Kingdom; Univ Lyon, Université Lyon 1, ENS de Lyon, CNRS, UMR 5276 LGL-TPE, 2, Rue Raphaël Dubois, Villeurbanne Cedex, 69622, France; Univ Lyon, Université Lyon 1, CNRS, UMR 5023 LEHNA, 3, Rue Raphaël Dubois, Villeurbanne Cedex, 69622, France; Department of Archaeology, University of Cape Town, Private Bag X3, Rondebosch, 7701, South Africa
推荐引用方式 GB/T 7714	Rey K.,Day M.O.,Amiot R.,et al. Oxygen isotopes and ecological inferences of Permian (Guadalupian) tetrapods from the main Karoo Basin of South Africa[J],2020,538.
APA	Rey K..,Day M.O..,Amiot R..,Fourel F..,Luyt J..,...&Rubidge B.S..(2020).Oxygen isotopes and ecological inferences of Permian (Guadalupian) tetrapods from the main Karoo Basin of South Africa.Palaeogeography, Palaeoclimatology, Palaeoecology,538.
MLA	Rey K.,et al."Oxygen isotopes and ecological inferences of Permian (Guadalupian) tetrapods from the main Karoo Basin of South Africa".Palaeogeography, Palaeoclimatology, Palaeoecology 538(2020).