Previously Unrecognized Ornithuromorph Bird Diversity in the Early;Cretaceous Changma Basin, Gansu Province, Northwestern China

doi:10.1371/journal.pone.0077693

	Previously Unrecognized Ornithuromorph Bird Diversity in the Early;Cretaceous Changma Basin, Gansu Province, Northwestern China
	Wang, Ya-Ming 8; O'Connor, Jingmai K.; Li, Da-Qing ; You, Hai-Lu
刊名	PLOS ONE
	2013
卷号	8 期号:10;AR e77693 页码:-
ISSN号	1932-6203
DOI	10.1371/journal.pone.0077693
英文摘要	Here we report on three new species of ornithuromorph birds from the Lower Cretaceous Xiagou Formation in the Changma Basin of Gansu Province, northwestern China: Yumenornis huangi gen. et sp. nov., Changmaornis houi gen. et sp. nov., and Jiuquanornis niui gen. et sp. nov.. The last of these is based on a previously published but unnamed specimen: GSGM-05-CM-021. Although incomplete, the specimens can be clearly distinguished from each other and from Gansus yumenensis Hou and Liu, 1984. Phylogenetic analysis resolves the three new taxa as basal ornithuromorphs. This study reveals previously unrecognized ornithuromorph diversity in the Changma avifauna, which is largely dominated by Gansus but with at least three other ornithuromorphs. Body mass estimates demonstrate that enantiornithines were much smaller than ornithuromorphs in the Changma avifauna. In addition, Changma enantiornithines preserve long and recurved pedal unguals, suggesting an arboreal lifestyle; in contrast, Changma ornithuromorphs tend to show terrestrial or even aquatic adaptions. Similar differences in body mass and ecology are also observed in the Jehol avifauna in northeastern China, suggesting niche partitioning between these two clades developed early in their evolutionary history.
学科主题	古生物学
WOS关键词	ENANTIORNITHINE BIRD ; AVES ORNITHOTHORACES ; ORNITHURINE BIRD ; FOSSIL ; BIRDS ; EVOLUTION ; MORPHOLOGY ; CLADE
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	PUBLIC LIBRARY SCIENCE
WOS记录号	WOS:000325819400135
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/41554]
专题	中国地质科学院地质研究所
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Beijing, Peoples R China. 2.[Wang, Ya-Ming 3.O'Connor, Jingmai K. 4.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China. 5.[O'Connor, Jingmai K. 6.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China. 7.Gansu Geol Museum, Lanzhou, Gansu, Peoples R China. 8.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Wang, Ya-Ming,O'Connor, Jingmai K.,Li, Da-Qing,et al. Previously Unrecognized Ornithuromorph Bird Diversity in the Early;Cretaceous Changma Basin, Gansu Province, Northwestern China[J]. PLOS ONE,2013,8(10;AR e77693):-.
APA	Wang, Ya-Ming,O'Connor, Jingmai K.,Li, Da-Qing,&You, Hai-Lu.(2013).Previously Unrecognized Ornithuromorph Bird Diversity in the Early;Cretaceous Changma Basin, Gansu Province, Northwestern China.PLOS ONE,8(10;AR e77693),-.
MLA	Wang, Ya-Ming,et al."Previously Unrecognized Ornithuromorph Bird Diversity in the Early;Cretaceous Changma Basin, Gansu Province, Northwestern China".PLOS ONE 8.10;AR e77693(2013):-.