An adult specimen of Sinocyamodus xinpuensis (Sauropterygia: Placodontia) from Guanling, Guizhou, China

doi:10.1093/zoolinnean/zly080

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	An adult specimen of Sinocyamodus xinpuensis (Sauropterygia: Placodontia) from Guanling, Guizhou, China
	Wang, Wei 1,2,3,4; Li, Chun1,2 ; Wu, Xiao-Chun5
	2019-03-01
发表期刊	ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN	0024-4082
卷号	185 期号:3 页码:910-924
摘要	Cyamodontoidea is an armoured lineage of Placodontia, the basal-most clade of Sauropterygia. It was unknown in China until Sinocyamodus xinpuensis was reported in 2000, on the basis of a subadult specimen. Here we describe the first adult specimen of this taxon. This nearly complete specimen was determined to be S. xinpuensis by the stout triangular skull with a short snout, the nasalnasal contact, a carapace with three types of osteoderms developing rows in meridional ridges and vaulted zones on both sides and the phalangeal formula of 2-3-4-4-2. In this study, the diagnosis of S. xinpuensis is revised based on the new specimen, and the morphological interpretation, especially of the postcranial anatomy, is given. With new information from the adult specimen, our phylogenetic analysis supports the sister-group relationship of Sinocyamodus to Cyamodus. The differences between this new adult specimen and the subadult type specimen reveal ontogenetic variations in morphology, such as the growth of the posterior portion of the skull, the number of osteoderms and the configuration of the carapace.
关键词	comparative anatomy ontogeny osteology phylogeny postcranial skeleton Reptilia Triassic
DOI	10.1093/zoolinnean/zly080
关键词[WOS]	MARINE REPTILES ; PALEOBIOGEOGRAPHY ; PHYLOGENY
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China (NSFC)[41772006] ; University of Chinese Academy of Sciences Joint PhD Training Program[UCAS[2015]37]
WOS研究方向	Zoology
WOS类目	Zoology
WOS记录号	WOS:000462613400008
出版者	OXFORD UNIV PRESS
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/9528
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Wang, Wei
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Zurich, Palaontol Inst & Museum, Karl Schmid Str 4, CH-8006 Zurich, Switzerland 5.Canadian Museum Nat, Stn D, POB 3443, Ottawa, ON KIP 6P4, Canada
推荐引用方式 GB/T 7714	Wang, Wei,Li, Chun,Wu, Xiao-Chun. An adult specimen of Sinocyamodus xinpuensis (Sauropterygia: Placodontia) from Guanling, Guizhou, China[J]. ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,2019,185(3):910-924.
APA	Wang, Wei,Li, Chun,&Wu, Xiao-Chun.(2019).An adult specimen of Sinocyamodus xinpuensis (Sauropterygia: Placodontia) from Guanling, Guizhou, China.ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,185(3),910-924.
MLA	Wang, Wei,et al."An adult specimen of Sinocyamodus xinpuensis (Sauropterygia: Placodontia) from Guanling, Guizhou, China".ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 185.3(2019):910-924.

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