The first definitive carcharodontosaurid (Dinosauria: Theropoda) from Asia and the delayed ascent of tyrannosaurids

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	The first definitive carcharodontosaurid (Dinosauria: Theropoda) from Asia and the delayed ascent of tyrannosaurids
	Brusatte, Stephen L.1,2; Benson, Roger B. J.5; Chure, Daniel J.3; Xu, Xing 4; Sullivan, Corwin 4; Hone, David W. E.4; [email protected]
	2009-09-01
发表期刊	NATURWISSENSCHAFTEN
ISSN	0028-1042
卷号	96 期号:9 页码:1051-1058
文章类型	Article
摘要	Little is known about the evolution of large-bodied theropod dinosaurs during the Early to mid Cretaceous in Asia. Prior to this time, Asia was home to an endemic fauna of basal tetanurans, whereas terminal Cretaceous ecosystems were dominated by tyrannosaurids, but the intervening 60 million years left a sparse fossil record. Here, we redescribe the enigmatic large-bodied Chilantaisaurus maortuensis from the Turonian of Inner Mongolia, China. We refer this species to a new genus, Shaochilong, and analyze its systematic affinities. Although Shaochilong has previously been allied with several disparate theropod groups (Megalosauridae, Allosauridae, Tyrannosauroidea, Maniraptora), we find strong support for a derived carcharodontosaurid placement. As such, Shaochilong is the first unequivocal Asian member of Carcharodontosauridae, which was once thought to be restricted to Gondwana. The discovery of an Asian carcharodontosaurid indicates that this clade was cosmopolitan in the Early to mid Cretaceous and that Asian large-bodied theropod faunas were no longer endemic at this time. It may also suggest that the ascent of tyrannosaurids into the large-bodied dinosaurian predator niche was a late event that occurred towards the end of the Cretaceous, between the Turonian and the Campanian.
关键词	Dinosauria Theropoda Carcharodontosauridae Tyrannosauridae Cretaceous Paleobiogeography
WOS标题词	Science & Technology
URL	查看原文
关键词[WOS]	REPUBLIC-OF-CHINA ; CARNOSAUR DINOSAURIA ; CRETACEOUS THEROPOD ; SAUROPOD DINOSAURS ; NORTH-AMERICA ; ARGENTINA ; EVOLUTION ; BIOGEOGRAPHY ; PHYLOGENY ; 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:000269013600006
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/4719
专题	中科院古脊椎所（2000年以后）
通讯作者	[email protected]
作者单位	1.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA 2.Columbia Univ, Dept Earth & Environm Sci, New York, NY USA 3.Dinosaur Natl Monument, Jensen, UT 84035 USA 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 5.Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England
推荐引用方式 GB/T 7714	Brusatte, Stephen L.,Benson, Roger B. J.,Chure, Daniel J.,et al. The first definitive carcharodontosaurid (Dinosauria: Theropoda) from Asia and the delayed ascent of tyrannosaurids[J]. NATURWISSENSCHAFTEN,2009,96(9):1051-1058.
APA	Brusatte, Stephen L..,Benson, Roger B. J..,Chure, Daniel J..,Xu, Xing.,Sullivan, Corwin.,[email protected].(2009).The first definitive carcharodontosaurid (Dinosauria: Theropoda) from Asia and the delayed ascent of tyrannosaurids.NATURWISSENSCHAFTEN,96(9),1051-1058.
MLA	Brusatte, Stephen L.,et al."The first definitive carcharodontosaurid (Dinosauria: Theropoda) from Asia and the delayed ascent of tyrannosaurids".NATURWISSENSCHAFTEN 96.9(2009):1051-1058.

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