A Basal Alvarezsauroid Theropod from the Early Late Jurassic of Xinjiang, China-Reference-Cited by-同舟云学术

A Basal Alvarezsauroid Theropod from the Early Late Jurassic of Xinjiang, China

Published:2010-01-29 Issue:5965 Volume:327 Page:571-574
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Choiniere Jonah N.¹,Xu Xing²,Clark James M.¹,Forster Catherine A.¹,Guo Yu²,Han Fenglu²

Affiliation:

1. Department of Biological Sciences, The George Washington University, Washington, DC 20052, USA.

2. Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Beijing 100044, China.

Abstract

Big Finger Alvarezsauroidea are an enigmatic group of theropods presumed to be closely related to birds, though most specimens are younger than Archaeopteryx . Choiniere et al. (p. 571 ; see news story by Stone) now describe a more complete early specimen, dating to about 160 million years ago, which supports the conclusion that Alvarezsauroidea are a basal group of the clade containing both birds and their close theropod relatives. The fossil also helps to reveal the evolution of this group's peculiar forelimb, which includes one enlarged functional finger.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference38 articles.

1. A Basal Dromaeosaurid and Size Evolution Preceding Avian Flight

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