restudyofregalerpetonweichangensisamphibiaurodelafromthelowercretaceousofhebeichina

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	restudyofregalerpetonweichangensisamphibiaurodelafromthelowercretaceousofhebeichina
	Rong Yufen
	2018
发表期刊	古脊椎动物学报
ISSN	1000-3118
卷号	56 期号:2 页码:121
摘要	Regalerpeton weichangensis was established in 2009 on an incomplete skeleton preserved mainly as an impression from the Lower Cretaceous of Hebei, China. However, several anatomical characters were misinterpreted due to distortion of the holotype, and its taxonomic position has been in debate. In this paper, R. weichangensis is redescribed based on eight new specimens and its diagnosis and phylogenetic position are re-examined. This work shows that R. weichangensis was a neotenic form with ossified carpals and tarsals. It has a series of unique combination of characteristics including the vomer with a transverse vomerine tooth row, anterior end of the cultriform process of the parasphenoid indented, basibranchial II triradiate, a long tail exceeded the snout-pelvis length and scapulocoracoid with a rectangular coracoid end. Phylogenetic analysis suggests Regalerpeton, Jeholotriton and Pangerpeton should be placed in the suborder Salamandroidea with three synapomorphies. Moreover, they also share unicapitate ribs with Cryptobranchoidea, which indicates that they represent an important stage of evolution in the Cryptobranchoidea-Salamandroidea split.
语种	英语
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/14823
专题	中国科学院古脊椎动物与古人类研究所
作者单位	中国科学院古脊椎动物与古人类研究所
第一作者单位	中国科学院古脊椎动物与古人类研究所
推荐引用方式 GB/T 7714	Rong Yufen. restudyofregalerpetonweichangensisamphibiaurodelafromthelowercretaceousofhebeichina[J]. 古脊椎动物学报,2018,56(2):121.
APA	Rong Yufen.(2018).restudyofregalerpetonweichangensisamphibiaurodelafromthelowercretaceousofhebeichina.古脊椎动物学报,56(2),121.
MLA	Rong Yufen."restudyofregalerpetonweichangensisamphibiaurodelafromthelowercretaceousofhebeichina".古脊椎动物学报 56.2(2018):121.