Agigantic bird-like dinosaur from the Late Cretaceous of China

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	Agigantic bird-like dinosaur from the Late Cretaceous of China
	Xu, Xing; Tan, Qingwei ; Wang, Jianmin ; Zhao, Xijin ; Tan, Lin ; xu.xing@ivpp.ac.cn
刊名	NATURE
	2007-06-14
卷号	447 期号:7146 页码:844-847
关键词	Sauropod Dinosaurs Northeastern China North-america Theropoda Mongolia Specimens Evolution History
ISSN号	0028-0836
文献子类	Article
英文摘要	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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WOS关键词	SAUROPOD DINOSAURS ; NORTHEASTERN CHINA ; NORTH-AMERICA ; THEROPODA ; MONGOLIA ; SPECIMENS ; EVOLUTION ; HISTORY
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000247207500041
公开日期	2013-11-27
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/4910]
专题	古脊椎动物与古人类研究所_图书馆1 古脊椎动物与古人类研究所_古低等脊椎动物研究室
通讯作者	xu.xing@ivpp.ac.cn
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Long Hao Inst Geol & Paleontol, Hohhot 010010, Nei Mongol, Peoples R China 3.Dept Land Resources, Hohhot 010010, Nei Mongol, 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.xing@ivpp.ac.cn.(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.