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A new stem-varanid lizard (Reptilia, Squamata) from the early Eocene of China

文献类型：期刊论文

作者Dong, Liping4,5; Wang, Yuan-Qing4,5; Zhao, Qi4,5; Vasilyan, Davit2,3; Wang, Yuan4,5; Evans, Susan E.1
刊名PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
出版日期2022-03-28
卷号377期号:1847页码:19
关键词early Eocene China Varanidae evolution
ISSN号0962-8436
DOI10.1098/rstb.2021.0041
通讯作者Dong, Liping(dongliping@ivpp.ac.cn)
英文摘要Monitor lizards (genus Varanus) are today distributed across Asia, Africa and Australasia and represent one of the most recognizable and successful lizard lineages. They include charismatic living species like the Komodo dragon of Indonesia and the even larger extinct Varanus prisca (Megalania) of Australia. The fossil record suggests that living varanids had their origins in a diverse assemblage of stem (varaniform) species known from the Late Cretaceous of China and Mongolia. However, determining the biogeographic origins of crown-varanids has proved problematic, with Asia, Africa and Australia each being proposed. The problem is complicated by the fragmentary nature of many attributed specimens, and the fact that the most widely accepted, and most complete, fossil of a stem-varanid, that of Saniwa ensidens, is from North America. In this paper, we describe a well-preserved skull and skeleton of a new genus of stem-varanid from the Eocene of China. Phylogenetic analysis places the new genus as the sister taxon of Varanus, suggesting that the transition from Cretaceous varaniform lizards to Varanus occurred in East Asia before the origin and dispersal of Varanus to other regions. The discovery of the new specimen thus fills an important gap in the fossil record of monitor lizards. The similar lengths of the fore- and hindlimbs in this new taxon are unusual among the total group Varanidae and suggest it may have had a different lifestyle, at least from the contemporaneous North American S. ensidens. This article is part of the theme issue 'The impact of Chinese palaeontology on evolutionary research'.
WOS关键词COMPARATIVE MORPHOLOGY ; THERMAL MAXIMUM ; EVOLUTION ; RECORD ; SKULL ; BASIN ; SYSTEMATICS ; PHYLOGENY ; OLIGOCENE ; MIOCENE
资助项目National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[42072031] ; National Natural Science Foundation of China[41702019] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB 18000000] ; Youth Innovation Promotion Association ; Linnaean Society of London ; Swiss National Science Foundation[181041]
WOS研究方向Life Sciences & Biomedicine - Other Topics
语种英语
WOS记录号WOS:000751802600006
出版者ROYAL SOC
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Youth Innovation Promotion Association ; Linnaean Society of London ; Swiss National Science Foundation
源URL[http://119.78.100.205/handle/311034/21483]  
专题古脊椎动物与古人类研究所_图书馆1
通讯作者Dong, Liping
作者单位1.UCL, Dept Cell & Dev Biol, Ctr Integrat Anat, London, England
2.Univ Fribourg, Dept Geosci, Fribourg, Switzerland
3.Jurassica Museum, Porrentruy, Switzerland
4.CAS Ctr Excellence Life & Paleoenvironment, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Dong, Liping,Wang, Yuan-Qing,Zhao, Qi,et al. A new stem-varanid lizard (Reptilia, Squamata) from the early Eocene of China[J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2022,377(1847):19.
APA Dong, Liping,Wang, Yuan-Qing,Zhao, Qi,Vasilyan, Davit,Wang, Yuan,&Evans, Susan E..(2022).A new stem-varanid lizard (Reptilia, Squamata) from the early Eocene of China.PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,377(1847),19.
MLA Dong, Liping,et al."A new stem-varanid lizard (Reptilia, Squamata) from the early Eocene of China".PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 377.1847(2022):19.

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