A new Triassic marine reptile from southwestern China

被引：57

作者：

Li, Chun ^{[2
]}

Rieppel, Olivier ^{[1
]}

Wu, Xiao-Chun ^{[3
]}

Zhao, Li-Jun ^{[4
]}

Wang, Li-Ting ^{[5
]}

机构：

[1] Field Museum Nat Hist, Dept Geol, Chicago, IL 60605 USA

[2] Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China

[3] Canadian Museum Nat, STN D, Ottawa, ON K1P 6P4, Canada

[4] Zhejiang Museum Nat Hist, Hangzhou 310012, Zhejiang, Peoples R China

[5] Geol Survey Guizhou Prov, Guiyang 550005, Peoples R China

来源：

JOURNAL OF VERTEBRATE PALEONTOLOGY | 2011年 / 31卷 / 02期

基金：

中国国家自然科学基金;

关键词：

GUIZHOU PROVINCE; TURTLE; ORIGIN; ACTINOPTERYGII; SAUROPTERYGIA; YUNNAN; SHELL; AREA;

D O I：

10.1080/02724634.2011.550368

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

A new genus and species of marine reptile is described from the Pelsonian (Anisian, Middle Triassic) of Luoping County, Yunnan Province, southwestern China. This diapsid reptile with a secondarily closed upper temporal fossa is the sister taxon to Saurosphargis from the lower Muschelkalk (Anisian, Middle Triassic) of central Europe. It further emphasizes the close faunal affinities between the Eastern and Western Tethyan realm. The new taxon is convergent on cyamodontoid placodonts in having developed a dorsal body armor composed of small osteoderms. The underlying ribs are transversely broadened so as to establish contact along their length, thus forming a closed dorsal 'rib basket,' a unique morphology shared with Saurosphargis.

引用

页码：303 / 312

页数：10

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