A new species of Macrocnemus (Reptilia: Protorosauria) from the Middle Triassic of southwestern China and its palaeogeographical implication

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	A new species of Macrocnemus (Reptilia: Protorosauria) from the Middle Triassic of southwestern China and its palaeogeographical implication
	LI Chun1 ; ZHAO LiJun 2; WANG LiTing 3
	2007
发表期刊	Science in China Series D: Earth Sciences
ISSN	1006-9313
卷号	50 期号:11 页码:1601
摘要	A new species of the terrestrial protorosaur Macrocnemus is briefly described and named Macrocnemus fuyuanensis sp.nov.The specimen was found from the marine Triassic of Yunnan Province,southwestern China.It differs from the type species M.bassanii in having the following characters: (1) 17 or 18 dorsal vertebrae; (2) relatively long humerus; and (3) femur longer than tibia.M.fuyuanensis is the only record of the genus outside Monte San Giorgio area and the first definite terrestrial reptile found from the marine Triassic of China.The age of the fossil-bearing Zhuganpo Member of the Falang Formation is believed to be the Ladinian based on associated vertebrate fauna.The existence of Macrocnemus in the limestone suggests the presence of a terrestrial ecosystem which probably originated from the Anisian and well developed in the Ladinian in this region.The island system along the north-coast of Tethyan during the Triassic was probably an important route for the exchanges of reptiles,especially the terrestrial reptiles between the west and east.
语种	英语
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/12741
专题	中国科学院古脊椎动物与古人类研究所
作者单位	1.中国科学院古脊椎动物与古人类研究所 2.Zhejiang Museum of Nature History 3.Geological Survey of Guizhou Province
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	LI Chun,ZHAO LiJun,WANG LiTing. A new species of Macrocnemus (Reptilia: Protorosauria) from the Middle Triassic of southwestern China and its palaeogeographical implication[J]. Science in China Series D: Earth Sciences,2007,50(11):1601.
APA	LI Chun,ZHAO LiJun,&WANG LiTing.(2007).A new species of Macrocnemus (Reptilia: Protorosauria) from the Middle Triassic of southwestern China and its palaeogeographical implication.Science in China Series D: Earth Sciences,50(11),1601.
MLA	LI Chun,et al."A new species of Macrocnemus (Reptilia: Protorosauria) from the Middle Triassic of southwestern China and its palaeogeographical implication".Science in China Series D: Earth Sciences 50.11(2007):1601.

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