An Enantiornithine with a Fan-Shaped Tail, and the Evolution of the Rectricial Complex in Early Birds

IVPP-IR > 中科院古脊椎所（2000年以后）

	An Enantiornithine with a Fan-Shaped Tail, and the Evolution of the Rectricial Complex in Early Birds
	O'Connor, Jingmai K.1; Wang, Xiaoli 2; Zheng, Xiaoting 2,3; Hu, Han 1; Zhang, Xiaomei 3; Zhou, Zhonghe1
	2016-01-11
发表期刊	CURRENT BIOLOGY
卷号	26 期号:1 页码:114-119
文章类型	Article
摘要	The most basal avians Archaeopteryx and Jeholornis have elongate reptilian tails. However, all other birds (Pygostylia) have an abbreviated tail that ends in a fused element called the pygostyle. In extant birds, this is typically associated with a fleshy structure called the rectricial bulb that secures the tail feathers (rectrices) [1]. The bulbi rectricium muscle controls the spread of the rectrices during flight. This ability to manipulate tail shape greatly increases flight function [2, 3]. The Jehol avifauna preserves the earliest known pygostylians and a diversity of rectrices. However, no fossil directly elucidates this important skeletal transition. Differences in plumage and pygostyle morphology between clades of Early Cretaceous birds led to the hypothesis that rectricial bulbs co-evolved with the plough-shaped pygostyle of the Ornithuromorpha [4]. A newly discovered pengornithid, Chiappeavis magnapremaxillo gen. et sp. nov., preserves strong evidence that enantiornithines possessed aerodynamic rectricial fans. The consistent co-occurrence of short pygostyle morphology with clear aerodynamic tail fans in the Ornithuromorpha, the Sapeornithiformes, and now the Pengornithidae strongly supports inferences that these features co-evolved with the rectricial bulbs as a "rectricial complex." Most parsimoniously, rectricial bulbs are plesiomorphic to Pygostylia and were lost in confuciusornithiforms and some enantiornithines, although morphological differences suggest three independent origins.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	AVES ORNITHOTHORACES ; JEHOL BIOTA ; CHINA ; AERODYNAMICS ; FEATHERS ; INSIGHT ; ORNITHUROMORPH ; DIVERSITY ; SPECIMEN ; FLIGHT
收录类别	SCI
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Cell Biology
WOS类目	Biochemistry & Molecular Biology ; Cell Biology
WOS记录号	WOS:000368321100030
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7149
专题	中科院古脊椎所（2000年以后）古低等脊椎动物研究室
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Linyi Univ, Inst Geol & Paleontol, Linyi 276000, Shandong, Peoples R China 3.Shandong Tianyu Museum Nat, Pingyi 273300, Shandong, Peoples R China
推荐引用方式 GB/T 7714	O'Connor, Jingmai K.,Wang, Xiaoli,Zheng, Xiaoting,et al. An Enantiornithine with a Fan-Shaped Tail, and the Evolution of the Rectricial Complex in Early Birds[J]. CURRENT BIOLOGY,2016,26(1):114-119.
APA	O'Connor, Jingmai K.,Wang, Xiaoli,Zheng, Xiaoting,Hu, Han,Zhang, Xiaomei,&Zhou, Zhonghe.(2016).An Enantiornithine with a Fan-Shaped Tail, and the Evolution of the Rectricial Complex in Early Birds.CURRENT BIOLOGY,26(1),114-119.
MLA	O'Connor, Jingmai K.,et al."An Enantiornithine with a Fan-Shaped Tail, and the Evolution of the Rectricial Complex in Early Birds".CURRENT BIOLOGY 26.1(2016):114-119.

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