Tyrannosaurid Skeletal Design First Evolved at Small Body Size

IVPP-IR > 中科院古脊椎所（2000年以后）

	Tyrannosaurid Skeletal Design First Evolved at Small Body Size
	Sereno, Paul C.1; Tan, Lin 2; Brusatte, Stephen L.3; Kriegstein, Henry J.; Zhao, Xijin 4; Cloward, Karen 5; [email protected]
	2009-10-16
发表期刊	SCIENCE
ISSN	0036-8075
卷号	326 期号:5951 页码:418-422
文章类型	Article
摘要	Nearly all of the large-bodied predators (>2.5 tons) on northern continents during the Late Cretaceous were tyrannosaurid dinosaurs. We show that their most conspicuous functional specializations-a proportionately large skull, incisiform premaxillary teeth, expanded jaw-closing musculature, diminutive forelimbs, and hindlimbs with cursorial proportions-were present in a new, small-bodied, basal tyrannosauroid from Lower Cretaceous rocks in northeastern China. These specializations, which were later scaled up in Late Cretaceous tyrannosaurids with body masses approaching 100 times greater, drove the most dominant radiation of macropredators of the Mesozoic.
关键词	Theropod Dinosaurs Cranial Anatomy North-america Mechanics Position England Length China
WOS标题词	Science & Technology
URL	查看原文
关键词[WOS]	THEROPOD DINOSAURS ; CRANIAL ANATOMY ; NORTH-AMERICA ; MECHANICS ; POSITION ; ENGLAND ; LENGTH ; CHINA
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:000270818600051
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/4703
专题	中科院古脊椎所（2000年以后）
通讯作者	[email protected]
作者单位	1.Univ Chicago, Dept Organismal Biol & Anat, Chicago, IL 60637 USA 2.Bur Land & Resources, Long Hao Inst Geol & Paleontol, Hohhot 010010, Peoples R China 3.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 5.Western Paleontol Labs, Lehi, UT 84043 USA
推荐引用方式 GB/T 7714	Sereno, Paul C.,Tan, Lin,Brusatte, Stephen L.,et al. Tyrannosaurid Skeletal Design First Evolved at Small Body Size[J]. SCIENCE,2009,326(5951):418-422.
APA	Sereno, Paul C..,Tan, Lin.,Brusatte, Stephen L..,Kriegstein, Henry J..,Zhao, Xijin.,[email protected].(2009).Tyrannosaurid Skeletal Design First Evolved at Small Body Size.SCIENCE,326(5951),418-422.
MLA	Sereno, Paul C.,et al."Tyrannosaurid Skeletal Design First Evolved at Small Body Size".SCIENCE 326.5951(2009):418-422.

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