Agigantic bird-like dinosaur from the Late Cretaceous of China

IVPP-IR > 中科院古脊椎所（2000年以后）

	Agigantic bird-like dinosaur from the Late Cretaceous of China
	Xu, Xing(徐星); Tan, Qingwei; Wang, Jianmin; Zhao, Xijin(赵喜进); Tan, Lin; Xu, X (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China.
	2007
发表期刊	NATURE
ISSN	0028-0836
卷号	447 期号:7146 页码:844—847
摘要	An evolutionary trend of decreasing size is present along the line to birds in coelurosaurian theropod evolution(1,2), but size increases are seen in many coelurosaurian subgroups, in which large forms are less bird-like(2,3). Here we report on a new non-avian dinosaur, Gigantoraptor erlianensis, gen. et sp. nov., from the Late Cretaceous Iren Dabasu Formation of Nei Mongol, China. Although it has a body mass of about 1,400 kg, a phylogenetic analysis positions this new taxon within the Oviraptorosauria, a group of small, feathered theropods rarely exceeding 40 kg in body mass(2,4-7). A histological analysis suggests that Gigantoraptor gained this size by a growth rate considerably faster than large North American tyrannosaurs such as Albertosaurus and Gorgosaurus(8). Gigantoraptor possesses several salient features previously unknown in any other dinosaur and its hind limb bone scaling and proportions are significantly different from those of other coelurosaurs(9,10), thus increasing the morphological diversity among dinosaurs. Most significantly, the gigantic Gigantoraptor shows many birdlike features absent in its smaller oviraptorosaurian relatives, unlike the evolutionary trend seen in many other coelurosaurian subgroups(2,3).
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文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/3341
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), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China.
推荐引用方式 GB/T 7714	Xu, Xing,Tan, Qingwei,Wang, Jianmin,et al. Agigantic bird-like dinosaur from the Late Cretaceous of China[J]. NATURE,2007,447(7146):844—847.
APA	Xu, Xing,Tan, Qingwei,Wang, Jianmin,Zhao, Xijin,Tan, Lin,&Xu, X .(2007).Agigantic bird-like dinosaur from the Late Cretaceous of China.NATURE,447(7146),844—847.
MLA	Xu, Xing,et al."Agigantic bird-like dinosaur from the Late Cretaceous of China".NATURE 447.7146(2007):844—847.

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