Basal tyrannosauroids from China and evidence for protofeathers in tyrannosauroids

IVPP-IR > 中科院古脊椎所（2000年以后）

	Basal tyrannosauroids from China and evidence for protofeathers in tyrannosauroids
	Xu, X; Norell, MA ; Kuang, XW ; Wang, XL; Zhao, Q ; Jia, CK ; Xu, X (reprint author), Amer Museum Nat Hist, Cent Pk W & 79th St, New York, NY 10024 USA.
	2004-10-07
发表期刊	NATURE
ISSN	0028-0836
卷号	431 期号:7009 页码:680-684
文章类型	Article
摘要	Tyrannosauroids are one of the last and the most successful large-bodied predatory dinosaur groups(1-5), but their early history remains poorly understood. Here we report a new basal tyrannosauroid from the Early Cretaceous Yixian Formation of western Liaoning, China, which is small and gracile and has relatively long arms with three-fingered hands. The new taxon is the earliest known unquestionable tyrannosauroid found so far(6-9). It shows a mosaic of characters, including a derived cranial structure resembling that of derived tyrannosauroids(1-5) and a primitive postcranial skeleton similar to basal coelurosaurians. One of the specimens also preserves a filamentous integumentary covering similar to that of other coelurosaurian theropods from western Liaoning. This provides the first direct fossil evidence that tyrannosauroids had protofeathers.; Tyrannosauroids are one of the last and the most successful large-bodied predatory dinosaur groups(1-5), but their early history remains poorly understood. Here we report a new basal tyrannosauroid from the Early Cretaceous Yixian Formation of western Liaoning, China, which is small and gracile and has relatively long arms with three-fingered hands. The new taxon is the earliest known unquestionable tyrannosauroid found so far(6-9). It shows a mosaic of characters, including a derived cranial structure resembling that of derived tyrannosauroids(1-5) and a primitive postcranial skeleton similar to basal coelurosaurians. One of the specimens also preserves a filamentous integumentary covering similar to that of other coelurosaurian theropods from western Liaoning. This provides the first direct fossil evidence that tyrannosauroids had protofeathers.
WOS标题词	Science & Technology
URL	查看原文
关键词[WOS]	NORTH-AMERICA ; DINOSAURS ; EVOLUTION ; THEROPOD ; ASIA ; INFORMATION ; ANATOMY
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000224299300038
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/3613
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), Amer Museum Nat Hist, Cent Pk W & 79th St, New York, NY 10024 USA.
作者单位	1.Amer Museum Nat Hist, New York, NY 10024 USA 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 3.Tianjin Museum Nat Hist, Tianjin 300074, Peoples R China
推荐引用方式 GB/T 7714	Xu, X,Norell, MA,Kuang, XW,et al. Basal tyrannosauroids from China and evidence for protofeathers in tyrannosauroids[J]. NATURE,2004,431(7009):680-684.
APA	Xu, X.,Norell, MA.,Kuang, XW.,Wang, XL.,Zhao, Q.,...&Xu, X .(2004).Basal tyrannosauroids from China and evidence for protofeathers in tyrannosauroids.NATURE,431(7009),680-684.
MLA	Xu, X,et al."Basal tyrannosauroids from China and evidence for protofeathers in tyrannosauroids".NATURE 431.7009(2004):680-684.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Tyrannosauroids_Dilo（340KB）			开放获取	--	浏览下载