中国科学院机构知识库网格
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Multi-isotopic analysis reveals the early stem turtle Odontochelys as a nearshore herbivorous forager

文献类型:期刊论文

作者Goedert, Jean8; Amiot, Romain7; Anquetin, Jeremy5,6; Seon, Nicolas8; Bourgeais, Renaud4; Bailly, Gilles3; Fourel, Francois2; Simon, Laurent2; Li, Chun1; Wang, Wei1
刊名FRONTIERS IN ECOLOGY AND EVOLUTION
出版日期2023-08-17
卷号11页码:13
关键词Triassic sulfur oxygen carbon geochemistry paleoecology vertebrate
ISSN号2296-701X
DOI10.3389/fevo.2023.1175128
通讯作者Goedert, Jean(jean.goedert@protonmail.com)
英文摘要Introduction: After decades of debate on the origin of turtles, it is now widely accepted that they are diapsid reptiles originating in the Permian from a terrestrial ancestor. It seems that the initial development of the structures that will later form the unique turtle bony shell took place as a response to a fossorial lifestyle. However, the earliest stem turtle with a fully complete plastron, Odontochelys semitestacea from the Late Triassic (lower Carnian) of China, is somewhat controversially interpreted as an aquatic or even a marine form, raising the question of the environment in which the completion of the plastron happened. Methods: Here, we analyzed the stable carbon, oxygen and sulfur isotope compositions (delta C-13, delta O-18 and delta S-34) of bones from two specimens of Odontochelys along with bones and teeth of two associated specimens of the marine ichthyosaur Guizhouichthyosaurus tangae. Results and discussion: We first show that delta O-18 values of Odontochelys are incompatible with a terrestrial lifestyle and imply a semi-aquatic to aquatic lifestyle. Isotopic results also demonstrate that the aquatic environment of Odontochelys was submitted to a strong marine influence, therefore excluding the possibility of a strict freshwater aquatic environment. Additionally, an unusual carbon isotope composition shows that O. semitestacea was herbivorous, probably consuming macrophytic algae in coastal zones like the extant green sea turtle (Chelonia mydas) or the marine iguana (Amblyrhynchus cristatus) do.
WOS关键词DECOMPRESSION SYNDROME ; EVOLUTIONARY ORIGIN ; MARINE IGUANA ; DIAGENESIS ; PHOSPHATE ; FOSSIL ; CARBONATE ; SULFUR ; RATIOS ; ENAMEL
资助项目JA was funded by a grant from the Swiss National Science Foundation (SNF 205321_175978). ; Swiss National Science Foundation ; [SNF 205321_175978]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001059233700001
出版者FRONTIERS MEDIA SA
资助机构JA was funded by a grant from the Swiss National Science Foundation (SNF 205321_175978). ; Swiss National Science Foundation
源URL[http://119.78.100.205/handle/311034/22605]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Goedert, Jean
作者单位1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China
2.Univ Claude Bernard Lyon 1, Univ Lyon, CNRS, ENTPE,UMR 5023,LEHNA, Villeurbanne, France
3.Musee Angouleme, Angouleme, France
4.Univ PSL, Ecole Prat Hautes Etud, Les Patios St Jacques, Paris, France
5.Univ Fribourg, Dept Geosci, Fribourg, Switzerland
6.JURASSICA Museum, Porrentruy, Switzerland
7.Univ Claude Bernard Lyon 1, Univ Lyon, LGL TPE, UJM,CNRS,ENSL, Villeurbanne, France
8.Sorbonne Univ, Ctr Rech Paleontol Paris CR2P, Museum Natl Hist Nat, MNHN,CNRS, Paris, France
推荐引用方式
GB/T 7714
Goedert, Jean,Amiot, Romain,Anquetin, Jeremy,et al. Multi-isotopic analysis reveals the early stem turtle Odontochelys as a nearshore herbivorous forager[J]. FRONTIERS IN ECOLOGY AND EVOLUTION,2023,11:13.
APA Goedert, Jean.,Amiot, Romain.,Anquetin, Jeremy.,Seon, Nicolas.,Bourgeais, Renaud.,...&Lecuyer, Christophe.(2023).Multi-isotopic analysis reveals the early stem turtle Odontochelys as a nearshore herbivorous forager.FRONTIERS IN ECOLOGY AND EVOLUTION,11,13.
MLA Goedert, Jean,et al."Multi-isotopic analysis reveals the early stem turtle Odontochelys as a nearshore herbivorous forager".FRONTIERS IN ECOLOGY AND EVOLUTION 11(2023):13.

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来源:古脊椎动物与古人类研究所

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