气候变化领域集成服务门户(CCPortal): Stable isotopes (δ18O and δ13C) give new perspective on the ecology and diet of Endothiodon bathystoma (Therapsida; Dicynodontia) from the late Permian of the South African Karoo Basin

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DOI	10.1016/j.palaeo.2020.109882
	Stable isotopes (δ18O and δ13C) give new perspective on the ecology and diet of Endothiodon bathystoma (Therapsida; Dicynodontia) from the late Permian of the South African Karoo Basin
	Rey K.; Day M.O.; Amiot R.; Fourel F.; Luyt J.; Lécuyer C.; Rubidge B.S.
发表日期	2020
ISSN	0031-0182
卷号	556
英文摘要	The late Permian dicynodont Endothiodon is characterized by its specialized feeding system, most notably manifested in its long rows of post-canine teeth and corresponding keratinous surfaces. This specialisation has fuelled discussion of not only the masticatory biomechanics in Endothiodon but also of its diet and ecology. To shed light on the latter two, we compared the oxygen (δ18Op) and carbon (δ13Cc) stable isotope compositions of Endothiodon tooth and bone apatite with those of the co-occurring dicynodont Tropidostoma, another late Permian dicynodont of similar size. Preliminary results indicate that Endothiodon had significantly lower ratios for stable isotopes of both oxygen and carbon. The δ18Op values from Endothiodon suggest that its lifestyle was more water-dependent (i.e. obligate drinker) than Tropidostoma, pointing to the possibility of a semi-aquatic ecology, whereas δ13Cc values suggest that Endothiodon had a diet primarily comprising riparian vegetation, with the possibility that juveniles consumed terrestrial insects. The data suggest a negligible role for roots, seeds, or algae in the diet of Endothiodon. © 2020 Elsevier B.V.
英文关键词	Herbivory; Hoedemaker Member; Insectivory; Late Permian; Poortjie Member; Stable isotopes
语种	英语
scopus关键词	alga; apatite; biomechanics; bone; diet; mammal; Permian; stable isotope; tooth; Karoo; South Africa; algae; Dicynodontia; Endothiodon; Hexapoda; 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/150398
作者单位	Evolutionary Studies Institute and School of Geosciences, University of the Witwatersrand, Johannesburg, P.O. WITS 2050, 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, F-69622, Villeurbanne, France, 2, Rue Raphaël Dubois, Villeurbanne Cedex, 69622, France; Univ Lyon, Université Lyon 1, CNRS, UMR 5023 LEHNA, Villeurbanne, F-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. Stable isotopes (δ18O and δ13C) give new perspective on the ecology and diet of Endothiodon bathystoma (Therapsida; Dicynodontia) from the late Permian of the South African Karoo Basin[J],2020,556.
APA	Rey K..,Day M.O..,Amiot R..,Fourel F..,Luyt J..,...&Rubidge B.S..(2020).Stable isotopes (δ18O and δ13C) give new perspective on the ecology and diet of Endothiodon bathystoma (Therapsida; Dicynodontia) from the late Permian of the South African Karoo Basin.Palaeogeography, Palaeoclimatology, Palaeoecology,556.
MLA	Rey K.,et al."Stable isotopes (δ18O and δ13C) give new perspective on the ecology and diet of Endothiodon bathystoma (Therapsida; Dicynodontia) from the late Permian of the South African Karoo Basin".Palaeogeography, Palaeoclimatology, Palaeoecology 556(2020).