A new therizinosaur from the Lower Jurassic Lower Lufeng Formation of Yunnan, China

IVPP-IR > 中科院古脊椎所（2000年以后）

	A new therizinosaur from the Lower Jurassic Lower Lufeng Formation of Yunnan, China
	Xu, X; Zhao, XJ ; Clark, JM ; Xu, X (reprint author), Acad Sinica, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China.
	2001-08-22
发表期刊	JOURNAL OF VERTEBRATE PALEONTOLOGY
ISSN	0272-4634
卷号	21 期号:3 页码:477-483
文章类型	Article
摘要	A specimen collected from the Lower Jurassic Lower Lufeng Formation of Yunnan, China. represents a new genus and species of therizinosauroid theropod. It comprises an incomplete left mandibular ramus and is here named Eshanosaurus deguchiianus. Distinctive characteristics of the new species include the presence of a round fenestra in the posterior portion of the dentary, small size of tooth denticles, and denticles almost perpendicular to the anterior and posterior edges of tooth crowns. The discovery of Eshanosaurus deguchiianus extends the record of therizinosauroids from the Early Cretaceous back to the Early Jurassic. Recent phylogenetic hypotheses placing therizinosauroids within Coelurosauria imply this is the oldest known coelurosaur, and that diversification of the group began much earlier than was previously indicated by the fossil record.; A specimen collected from the Lower Jurassic Lower Lufeng Formation of Yunnan, China. represents a new genus and species of therizinosauroid theropod. It comprises an incomplete left mandibular ramus and is here named Eshanosaurus deguchiianus. Distinctive characteristics of the new species include the presence of a round fenestra in the posterior portion of the dentary, small size of tooth denticles, and denticles almost perpendicular to the anterior and posterior edges of tooth crowns. The discovery of Eshanosaurus deguchiianus extends the record of therizinosauroids from the Early Cretaceous back to the Early Jurassic. Recent phylogenetic hypotheses placing therizinosauroids within Coelurosauria imply this is the oldest known coelurosaur, and that diversification of the group began much earlier than was previously indicated by the fossil record.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
URL	查看原文
关键词[WOS]	DINOSAURS
收录类别	SCI
语种	英语
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:000170708200007
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/3851
专题	中科院古脊椎所（2000年以后）古低等脊椎动物研究室
通讯作者	Xu, X (reprint author), Acad Sinica, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China.
作者单位	1.Acad Sinica, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.George Washington Univ, Dept Biol Sci, Washington, DC 20052 USA
推荐引用方式 GB/T 7714	Xu, X,Zhao, XJ,Clark, JM,et al. A new therizinosaur from the Lower Jurassic Lower Lufeng Formation of Yunnan, China[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2001,21(3):477-483.
APA	Xu, X,Zhao, XJ,Clark, JM,&Xu, X .(2001).A new therizinosaur from the Lower Jurassic Lower Lufeng Formation of Yunnan, China.JOURNAL OF VERTEBRATE PALEONTOLOGY,21(3),477-483.
MLA	Xu, X,et al."A new therizinosaur from the Lower Jurassic Lower Lufeng Formation of Yunnan, China".JOURNAL OF VERTEBRATE PALEONTOLOGY 21.3(2001):477-483.

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