New material of the Early Cretaceous lizard Yabeinosaurus from China

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	New material of the Early Cretaceous lizard Yabeinosaurus from China
	Evans, Susan E.1; Wang, Yuan 2; [email protected]; [email protected]
	2012-04-01
发表期刊	CRETACEOUS RESEARCH
ISSN	0195-6671
卷号	34 页码:48-60
文章类型	Article
摘要	The Early Cretaceous lizard Yabeinosaurus was one of the first taxa described from the now famous Jehol Biota of northeast China. Misinterpreted for more than 60 years and misclassified as a gekkotan based on juvenile specimens, it is now recognised to be a large, well-ossified lizard with an extended period of skeletal maturation. Here we describe two additional complete specimens of Yabeinosaurus that provide new information on skeletal morphology, most notably of the skull, pectoral girdle, and tail. Both specimens also preserve gut contents, showing that large individuals took vertebrate prey, including fish. A more complete understanding of Yabeinosaurus permits a review of the type specimen of Yabeinosaurus youngi. Skull traits used to distinguish Y. youngi from Yabeinosaurus tenuis are invalid but, as noted by Hoffstetter, the two species differ markedly in limb proportions. Attribution of Young's specimen to Yabeinosaurus is equivocal, but could potentially extend the temporal range of the lineage into the Jurassic. A new phylogenetic analysis based on a morphological data set places Yabeinosaurus on the stem of Scleroglossa, as the sister taxon of the contemporaneous Japanese lizard Sakurasaurus. (C) 2011 Elsevier Ltd. All rights reserved.
关键词	China Lizard Yabeinosaurus Early Cretaceous Jehol Group Phylogeny Diet
WOS标题词	Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
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关键词[WOS]	INNER-MONGOLIA ; SQUAMATA ; AGE ; AMPHISBAENIANS ; PHYLOGENY ; EVOLUTION ; DAOHUGOU ; REPTILES ; SNAKES ; JAPAN
收录类别	SCI
语种	英语
WOS研究方向	Geology ; Paleontology
WOS类目	Geology ; Paleontology
WOS记录号	WOS:000301027200005
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/4311
专题	古低等脊椎动物研究室
通讯作者	[email protected]; [email protected]
作者单位	1.UCL, Dept Cell & Dev Biol, London WC1E 6BT, England 2.Chinese Acad Sci, Lab Evolutionary Systemat Vertebrates, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Evans, Susan E.,Wang, Yuan,[email protected],et al. New material of the Early Cretaceous lizard Yabeinosaurus from China[J]. CRETACEOUS RESEARCH,2012,34:48-60.
APA	Evans, Susan E.,Wang, Yuan,[email protected],[email protected].(2012).New material of the Early Cretaceous lizard Yabeinosaurus from China.CRETACEOUS RESEARCH,34,48-60.
MLA	Evans, Susan E.,et al."New material of the Early Cretaceous lizard Yabeinosaurus from China".CRETACEOUS RESEARCH 34(2012):48-60.

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