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

IVPP-IR > 中科院古脊椎所（2000年以后）

	A new titanosaurian sauropod from Late Cretaceous of Nei Mongol, China
	Xu, X; Zhang, XH; Tan, QW; Zhao, XJ; Tan, L; xu.xing@pa.ivpp.ac.cn
	2006
发表期刊	ACTA GEOL SIN-ENGL
ISSN	1000-9515
卷号	80 期号:1
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	Liaoning Province Yixian Formation Inner-mongolia Dinosaur Theropoda Specimen Genus
收录类别	SCI收录
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/5025
专题	中科院古脊椎所（2000年以后）
通讯作者	xu.xing@pa.ivpp.ac.cn
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 GEOL SIN-ENGL,2006,80(1).
APA	Xu, X,Zhang, XH,Tan, QW,Zhao, XJ,Tan, L,&xu.xing@pa.ivpp.ac.cn.(2006).A new titanosaurian sauropod from Late Cretaceous of Nei Mongol, China.ACTA GEOL SIN-ENGL,80(1).
MLA	Xu, X,et al."A new titanosaurian sauropod from Late Cretaceous of Nei Mongol, China".ACTA GEOL SIN-ENGL 80.1(2006).

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