Complexities and novelties in the early evolution of avian flight, as seen in the Mesozoic Yanliao and Jehol Biotas of Northeast China

doi:10.1016/j.palwor.2016.12.001

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	Complexities and novelties in the early evolution of avian flight, as seen in the Mesozoic Yanliao and Jehol Biotas of Northeast China
	Sullivan, Corwin; Xu, Xing; O'Connor, Jingmai K.
刊名	PALAEOWORLD
	2017-06-01
卷号	26 期号:2 页码:212-229
关键词	Theropoda Paraves Ayes Flight Feathers
DOI	10.1016/j.palwor.2016.12.001
文献子类	Article
英文摘要	Recently reported specimens from the Mid-Late Jurassic Yanliao (or Daohugou) Biota and Early Cretaceous Jehol Biota of Northeast China suggest that the early evolution of avian flight involved a surprising amount of homoplasy and evolutionary experimentation. Pennaceous feathers of variable size, structure, and extent occur on the hindlimbs of numerous Jehol and Yanliao paravian theropods, including some basal birds, and clearly had an aerodynamic function at least in the dromaeosaurid Micro raptor. However, their function in many cases may have been primarily ornamental, and it is unclear whether aerodynamically useful hindwings represent a widespread paravian feature or an evolutionary novelty limited to Microraptor and possibly a few other taxa. Clearer examples of novelties related to aerial locomotion are the tail plumage of the basal bird Jeholornis, in which a proximal fan of feathers is present and the ancestral distal frond is somewhat reduced, and the membranous wings of the Yanliao scansoriopterygid Yi. Early paravian evolution evidently involved a rapid diversification of aerodynamic structures, and ancestral paravians may have been volant. It is also possible that the avian lineage passed through a four-winged "tetrapterygian" stage, but current phylogenies suggest that aerodynamic hindwings were more likely acquired independently by different paravian groups. (C) 2016 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. Published by Elsevier B.V. All rights reserved.
WOS关键词	DROMAEOSAURID DINOSAURIA THEROPODA ; BIZARRE JURASSIC MANIRAPTORAN ; EARLY CRETACEOUS BIRD ; SEXUAL SELECTION ; FEATHERED DINOSAURS ; ARCHAEOPTERYX-LITHOGRAPHICA ; INTEGUMENTARY STRUCTURES ; CONFUCIUSORNIS-SANCTUS ; SPECIES RECOGNITION ; 4-WINGED DINOSAURS
WOS研究方向	Paleontology
语种	英语
WOS记录号	WOS:000402828000002
资助机构	National Natural Science Foundation of China(41120124002) ; 973 Program(2012CB821900)
内容类型	期刊论文
源URL	[http://124.16.247.212/handle/311034/7578]
专题	古脊椎动物与古人类研究所_图书馆1
作者单位	Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, 142 Xizhimenwai Dajie, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Sullivan, Corwin,Xu, Xing,O'Connor, Jingmai K.. Complexities and novelties in the early evolution of avian flight, as seen in the Mesozoic Yanliao and Jehol Biotas of Northeast China[J]. PALAEOWORLD,2017,26(2):212-229.
APA	Sullivan, Corwin,Xu, Xing,&O'Connor, Jingmai K..(2017).Complexities and novelties in the early evolution of avian flight, as seen in the Mesozoic Yanliao and Jehol Biotas of Northeast China.PALAEOWORLD,26(2),212-229.
MLA	Sullivan, Corwin,et al."Complexities and novelties in the early evolution of avian flight, as seen in the Mesozoic Yanliao and Jehol Biotas of Northeast China".PALAEOWORLD 26.2(2017):212-229.