Insights into the evolution of rachis dominated tail feathers from a new basal enantiornithine (Aves: Ornithothoraces)

CORC > 古脊椎动物与古人类研究所 > 中国科学院古脊椎动物与古人类研究所 > 古低等脊椎动物研究室

	Insights into the evolution of rachis dominated tail feathers from a new basal enantiornithine (Aves: Ornithothoraces)
	Wang, Xiaoli 1,2; O'Connor, Jingmai K.3; Zheng, Xiaoting 1,2; Wang, Min 3; Hu, Han 3; Zhou, Zhonghe3 ; O'Connor, JK (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China.
刊名	BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
	2014-11-01
卷号	113 期号:3 页码:805-819
关键词	Cretaceous Huajiying Jehol Pengornis Pengornithidae Rectrix
ISSN号	0024-4066
文献子类	Article
英文摘要	We report on a new enantiornithine Eopengornis martini gen. et sp. nov. from the lowest horizon of the Jehol Biota in Hebei, China; dated at 130.7Mya, this is the second oldest avian bearing fossil deposit in the world, recording the First Appearance Datum of Enantiornithes. The new specimen, only the second enantiornithine and third bird reported from this horizon, preserves numerous synapomorphies with the largest Lower Cretaceous enantiornithine Pengornis houi from the Jiufotang Formation dated at 120Mya. Together, they form a new avian lineage that lasted over 10Myr, which is longer than any known clade of Lower Cretaceous enantiornithine. Eopengornis reveals new information about basal enantiornithine morphology such as the presence of a metatarsal V, helping to clarify the early evolution of these dominant Cretaceous avians. Furthermore, Eopengornis preserves a previously unrecognized tail morphology: a pair of elongate fully pennaceous rachis dominated feathers. This discovery confirms hypotheses proposing that the rachis dominated racket-plumes in basal birds represent modified pennaceous feathers. We suggest that the ornamental racket-plumes in enantiornithines and Confuciusornis evolved independently from the basal pygostylian condition, which we infer was a tail formed of normal flight feathers.(c) 2014 The Linnean Society of London, Biological Journal of the Linnean Society, 2014, 113, 805-819.
WOS关键词	JEHOL-BIOTA ; CRETACEOUS ECOSYSTEM ; SUBADULT SPECIMEN ; AVIAN FLIGHT ; BIRD ; CHINA ; MORPHOLOGY
WOS研究方向	Evolutionary Biology
语种	英语
WOS记录号	WOS:000344184500011
资助机构	National Basic Research Program of China (973 Program) [2012CB821906]; National Natural Science Foundation of China [41172020, 41372014]
公开日期	2014-12-12
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/5101]
专题	古脊椎动物与古人类研究所_古低等脊椎动物研究室
通讯作者	O'Connor, JK (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China.
作者单位	1.Linyi Univ, Inst Geol & Paleontol, Linyi 276000, Shandong, Peoples R China 2.Tianyu Nat Hist Museum Shandong, Pingyi 273300, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiaoli,O'Connor, Jingmai K.,Zheng, Xiaoting,et al. Insights into the evolution of rachis dominated tail feathers from a new basal enantiornithine (Aves: Ornithothoraces)[J]. BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,2014,113(3):805-819.
APA	Wang, Xiaoli.,O'Connor, Jingmai K..,Zheng, Xiaoting.,Wang, Min.,Hu, Han.,...&O'Connor, JK .(2014).Insights into the evolution of rachis dominated tail feathers from a new basal enantiornithine (Aves: Ornithothoraces).BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,113(3),805-819.
MLA	Wang, Xiaoli,et al."Insights into the evolution of rachis dominated tail feathers from a new basal enantiornithine (Aves: Ornithothoraces)".BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 113.3(2014):805-819.