Discovery of an ornithurine bird and its implication for Early Cretaceous avian radiation

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	Discovery of an ornithurine bird and its implication for Early Cretaceous avian radiation
	Zhou, ZH; Zhang, FC ; Zhou, ZH (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, POB 643, Beijing 100044, Peoples R China.
	2005-12-27
发表期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN	0027-8424
卷号	102 期号:52 页码:18998-19002
文章类型	Article
摘要	An ornithurine bird, Hongshanornis longicresta gen. et sp. nov., represented by a nearly complete and articulated skeleton in full plumage, has been recovered from the lacustrine deposits of the Lower Cretaceous Jehol Group in inner Mongolia, northeast China. The bird had completely reduced teeth and possessed a beak in both the upper and lower jaws, representing the earliest known beaked ornithurine. The preservation of a predentary bone confirms that this structure is not unique to ornithischian dinosaurs but was common in early ornithurine birds. This small bird had a strong flying capability with a low aspect ratio wing. It was probably a wader, feeding in shallow water or marshes. This find confirms that the aquatic environment had played a key role in the origin and early radiation of ornithurines, one branch of which eventually gave rise to extant birds near the Cretaceous/Tertiary boundary. This discovery provides important information not only for studying the origin and early evolution of ornithurines but also for understanding the differentiation in morphology, body size, and diet of the Early Cretaceous birds.; An ornithurine bird, Hongshanornis longicresta gen. et sp. nov., represented by a nearly complete and articulated skeleton in full plumage, has been recovered from the lacustrine deposits of the Lower Cretaceous Jehol Group in inner Mongolia, northeast China. The bird had completely reduced teeth and possessed a beak in both the upper and lower jaws, representing the earliest known beaked ornithurine. The preservation of a predentary bone confirms that this structure is not unique to ornithischian dinosaurs but was common in early ornithurine birds. This small bird had a strong flying capability with a low aspect ratio wing. It was probably a wader, feeding in shallow water or marshes. This find confirms that the aquatic environment had played a key role in the origin and early radiation of ornithurines, one branch of which eventually gave rise to extant birds near the Cretaceous/Tertiary boundary. This discovery provides important information not only for studying the origin and early evolution of ornithurines but also for understanding the differentiation in morphology, body size, and diet of the Early Cretaceous birds.
关键词	Evolutionary Radiation Fossil Bird Inner Mongolia Beak
WOS标题词	Science & Technology
URL	查看原文
关键词[WOS]	FOSSIL EVIDENCE ; EARLY EVOLUTION ; TERTIARY BIRDS ; CHINA ; ORIGIN ; AGE
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:000234350000040
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/3493
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	Zhou, ZH (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, POB 643, Beijing 100044, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Univ Bristol, Dept Earth Sci, Bristol BS8 1RJ, Avon, England
推荐引用方式 GB/T 7714	Zhou, ZH,Zhang, FC,Zhou, ZH . Discovery of an ornithurine bird and its implication for Early Cretaceous avian radiation[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2005,102(52):18998-19002.
APA	Zhou, ZH,Zhang, FC,&Zhou, ZH .(2005).Discovery of an ornithurine bird and its implication for Early Cretaceous avian radiation.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,102(52),18998-19002.
MLA	Zhou, ZH,et al."Discovery of an ornithurine bird and its implication for Early Cretaceous avian radiation".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 102.52(2005):18998-19002.

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