Taxonomic revision of Eoalligator (Crocodylia, Brevirostres) and the paleogeographic origins of the Chinese alligatoroids

doi:10.7717/peerj.2356

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	Taxonomic revision of Eoalligator (Crocodylia, Brevirostres) and the paleogeographic origins of the Chinese alligatoroids
	Wang, Yan-yin 1,2; Sullivan, Corwin 1; Liu, Jun 1
刊名	PEERJ
	2016-08-24
卷号	4
关键词	Eoalligator Protoalligator Alligatoroidea Crocodyloidea Phylogeny Taxonomy Paleobiogeography
DOI	10.7717/peerj.2356
文献子类	Article
英文摘要	Background. The primarily Neotropical distribution of living alligatoroids raises questions as to when and how the ancestors of Alligator sinensis migrated to China. As phylogeny provides a necessary framework for historical biogeographic issues, determining the phylogenetic positions of the Chinese alligatoroids is a crucial step towards understanding global alligatoroid paleobiogeography. Besides the unnamed alligatoroids from the Eocene of Guangdong Province, three Chinese fossil taxa have been referred to Alligatoroidea: Alligator luicus, Eoalligator chunyii and Eoalligator huiningensis. However, none of these fossil taxa has been included in a phylogenetic analysis. The genus Eoalligator was established to accommodate E. chunyii from Guangdong Province. E. huiningensis from Anhui Province was later erected as a second species, despite no distinctive similarities with E. chunyii. By contrast, the putative crocodyline Asiatosuchus nanlingensis was established based on material from Guangdong Province, close to the E. chunyii specimens geographically and stratigraphically. Furthermore, specimens of A. nanlingensis and E. chunyii share four distinctive characters, but display no evident differences. As a result, the taxonomic relationships of these three species require restudy.
WOS关键词	PHYLOGENETIC-RELATIONSHIPS ; LATE PALEOCENE ; NORTH-AMERICA ; EOCENE ; HISTORY ; PLEISTOCENE ; EUSUCHIA ; BOUNDARY ; THAILAND ; SINENSIS
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000383261700005
资助机构	National Natural Science Foundation of China(41172017 ; IRG-China/South Africa Research Cooperation Programme(95449) ; 41472017)
内容类型	期刊论文
源URL	[http://124.16.247.212/handle/311034/6990]
专题	古脊椎动物与古人类研究所_图书馆1
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yan-yin,Sullivan, Corwin,Liu, Jun. Taxonomic revision of Eoalligator (Crocodylia, Brevirostres) and the paleogeographic origins of the Chinese alligatoroids[J]. PEERJ,2016,4.
APA	Wang, Yan-yin,Sullivan, Corwin,&Liu, Jun.(2016).Taxonomic revision of Eoalligator (Crocodylia, Brevirostres) and the paleogeographic origins of the Chinese alligatoroids.PEERJ,4.
MLA	Wang, Yan-yin,et al."Taxonomic revision of Eoalligator (Crocodylia, Brevirostres) and the paleogeographic origins of the Chinese alligatoroids".PEERJ 4(2016).