Polydactyly and other limb abnormalities in the Jurassic salamander Chunerpeton from China

doi:10.1007/s12549-015-0219-7

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	Polydactyly and other limb abnormalities in the Jurassic salamander Chunerpeton from China
	Wang, Yuan 1; Dong, Liping 1; Evans, Susan E.2
刊名	PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS
	2016-03-01
卷号	96 期号:1 页码:49-59
关键词	Polydactyly Supernumerary Limbs Phalangeal Abnormalities Jurassic Salamander Chunerpeton
DOI	10.1007/s12549-015-0219-7
文献子类	Article
英文摘要	Polydactyly and other malformations such as supernumerary limbs are relatively common in extant salamander populations. They generally result from biotic or abiotic disruption of normal regeneration following non-lethal predator or conspecific bite injury. Here, we record, for the first time, similar malformations in a fossil salamander. Fourteen specimens of the perennibranchiate Jurassic salamander Chunerpeton tianyiensis (Urodela, Cryptobranchidae), recovered from Jianping County, Liaoning Province, China, display polydactyly or abnormal phalangeal counts in one or more limbs, and two also possess supernumerary hind limbs. Polydactyly in Chunerpeton is mainly post-axial, occurring on the feet more often than the hands, and on the right side of the body more often than on the left. The extra legs also occurred on the right side of the body. Similar conditions can be observed in living salamanders, so these specimens suggest that the challenges faced by aquatic salamanders, and the developmental processes triggered in response, have changed relatively little in 160 million years.
WOS关键词	RED-BACKED SALAMANDER ; INNER-MONGOLIA ; AMPHIBIAN MALFORMATIONS ; PLETHODON-CINEREUS ; DAOHUGOU BIOTA ; TURNING BIAS ; STRATIGRAPHY ; NINGCHENG ; TADPOLES ; AGE
WOS研究方向	Biodiversity & Conservation ; Paleontology
语种	英语
WOS记录号	WOS:000376462900004
资助机构	Royal Society, London ; National Natural Science Foundation of China (NSFC) ; NSFC(41472018) ; 973 program of China(2012CB821900) ; China Scholarship Council
内容类型	期刊论文
源URL	[http://124.16.247.212/handle/311034/7107]
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, 142 Xizhimenwai St, Beijing 100044, Peoples R China 2.UCL, Dept Cell & Dev Biol, Gower St, London WC1E 6BT, England
推荐引用方式 GB/T 7714	Wang, Yuan,Dong, Liping,Evans, Susan E.. Polydactyly and other limb abnormalities in the Jurassic salamander Chunerpeton from China[J]. PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS,2016,96(1):49-59.
APA	Wang, Yuan,Dong, Liping,&Evans, Susan E..(2016).Polydactyly and other limb abnormalities in the Jurassic salamander Chunerpeton from China.PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS,96(1),49-59.
MLA	Wang, Yuan,et al."Polydactyly and other limb abnormalities in the Jurassic salamander Chunerpeton from China".PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS 96.1(2016):49-59.