Pre-Archaeopteryx coelurosaurian dinosaurs and their implications for understanding avian origins

IVPP-IR > 中科院古脊椎所（2000年以后）

	Pre-Archaeopteryx coelurosaurian dinosaurs and their implications for understanding avian origins
	Xu Xing1 ; Ma QingYu 1,3; Hu DongYu 2; xingxu@vip.sina.com ; dongyuchina@hotmail.com
	2010-12-01
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	55 期号:35 页码:3971-3977
文章类型	Review
摘要	The last two decades have witnessed great advances in reconstructing the transition from non-avian theropods to avians, but views in opposition to the theropod hypothesis still exist. Here we highlight one issue that is often considered to raise problems for the theropod hypothesis of avian origins, i.e. the "temporal paradox" in the stratigraphic distribution of theropod fossils - the idea that the earliest known avian is from the Late Jurassic but most other coelurosaurian groups are poorly known in the Jurassic, implying that avians arose before their supposed ancestors. However, a number of Jurassic non-avian coelurosaurian theropods have recently been discovered, thus documenting the presence of most of the major coelurosaurian groups in the Jurassic alongside, or prior to, avians. These discoveries have greatly improved the congruence between stratigraphy and phylogeny for derived theropods and, effectively, they reject the "temporal paradox" concept. Most importantly, these discoveries provide significant new information that supports the relatively basal positions of the Tyrannosauroidea and Alvarezsauroidea among the Coelurosauria. Indeed, they imply a new phylogenetic hypothesis for the interrelationships of Paraves, in which Archaeopteryx, the Dromaeosauridae, and the Troodontidae form a monophyletic group while the Scansoriopterygidae, other basal birds, and probably also the Oviraptorosauria, form another clade. Mapping some of the salient features onto a temporally-calibrated theropod phylogeny indicates that characteristics related to flight and arboreality evolved at the base of the Paraves, earlier than the Late Jurassic.
关键词	Jurassic Fossil Record Coelurosauria Theropoda Avian Origins
WOS标题词	Science & Technology
URL	查看原文
关键词[WOS]	THEROPOD DINOSAUR ; THERIZINOSAUROID DINOSAUR ; TYRANNOSAUROID DINOSAUR ; PHYLOGENETIC POSITION ; FEATHERED DINOSAURS ; PROTEIN SEQUENCES ; YIXIAN FORMATION ; INNER-MONGOLIA ; LONG FEATHERS ; 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:000285196000001
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/4487
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	xingxu@vip.sina.com; dongyuchina@hotmail.com
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China 2.Shenyang Normal Univ, Inst Paleontol, Shenyang 110034, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xu Xing,Ma QingYu,Hu DongYu,et al. Pre-Archaeopteryx coelurosaurian dinosaurs and their implications for understanding avian origins[J]. CHINESE SCIENCE BULLETIN,2010,55(35):3971-3977.
APA	Xu Xing,Ma QingYu,Hu DongYu,xingxu@vip.sina.com,&dongyuchina@hotmail.com.(2010).Pre-Archaeopteryx coelurosaurian dinosaurs and their implications for understanding avian origins.CHINESE SCIENCE BULLETIN,55(35),3971-3977.
MLA	Xu Xing,et al."Pre-Archaeopteryx coelurosaurian dinosaurs and their implications for understanding avian origins".CHINESE SCIENCE BULLETIN 55.35(2010):3971-3977.

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