A new titanosaurian sauropod from Late Cretaceous of Nei Mongol, China

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	A new titanosaurian sauropod from Late Cretaceous of Nei Mongol, China
	Xu, X ; Zhang, XH ; Tan, QW ; Zhao, XJ ; Tan, L
	2006
发表期刊	ACTA GEOLOGICA SINICA-ENGLISH EDITION
卷号	80 期号:1 页码:20-26
文章类型	Article
摘要	A specimen collected from the Upper Cretaceous Erlian Formation of Nei Mongol (Inner Mongolia), China, represents a new genus and species of titanosaurian sauropod. The new taxon is named and described on the basis of the holotype and the only known specimen, which comprises several dorsal, sacral, and caudal vertebrae, several dorsal ribs, one anterior chevron, and much of the pelvis. Diagnostic features of the new species include a thick ridge extending down from the postzygapophysis on the lateral surface of the neural arch of the posterior dorsal vertebrae, a transversely oriented accessory lamina present between the anterior centroparapophyseal limina and the lateral centraprezygapophyseal lamina of the posterior dorsal vertebrae, long, anteroventrally directed caudal rib that bears two distinctive fossae on its posterior margin on the anterior caudal vertebrae and a prominent vertical ridge above the pubic peduncle on the medial surface of the ilium, among others. The ilium is pneumatic, a feature not common among non-avian dinosaurs. The new taxon has an unusual combination of primitive and derived character states. Preliminary character analysis shows a complex character distribution within the Titanosauriformes. Recent titanosauriform discoveries suggest that a significant radiation occurred in Asia early in the titanosauriform evolution.
关键词	Nei Mongol (Inner Mongolia) Late Cretaceous Erlian Formation Titanosauriformes
WOS标题词	Science & Technology ; Physical Sciences
学科领域	古爬行动物学
关键词[WOS]	LIAONING PROVINCE ; YIXIAN FORMATION ; INNER-MONGOLIA ; DINOSAUR ; THEROPODA ; SPECIMEN ; GENUS
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000235927100003
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/1937
专题	古低等脊椎动物研究室
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Long Hao Geol & Paleontol Res Ctr, Hohhot 010010, Nei Mongol, Peoples R China
推荐引用方式 GB/T 7714	Xu, X,Zhang, XH,Tan, QW,et al. A new titanosaurian sauropod from Late Cretaceous of Nei Mongol, China[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2006,80(1):20-26.
APA	Xu, X,Zhang, XH,Tan, QW,Zhao, XJ,&Tan, L.(2006).A new titanosaurian sauropod from Late Cretaceous of Nei Mongol, China.ACTA GEOLOGICA SINICA-ENGLISH EDITION,80(1),20-26.
MLA	Xu, X,et al."A new titanosaurian sauropod from Late Cretaceous of Nei Mongol, China".ACTA GEOLOGICA SINICA-ENGLISH EDITION 80.1(2006):20-26.

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