Winged forelimbs of the small theropod dinosaur Caudipteryx could have generated small aerodynamic forces during rapid terrestrial locomotion

doi:10.1038/s41598-018-35966-4

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	Winged forelimbs of the small theropod dinosaur Caudipteryx could have generated small aerodynamic forces during rapid terrestrial locomotion
	Talori, Yaser Saffar 1; Liu, Yun-Fei 1; Zhao, Jing-Shan 1; Sullivan, Corwin 2,3; O'Connor, Jingmai K.4; Li, Zhi-Heng 4
	2018-12-14
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	8 页码:14
通讯作者	Zhao, Jing-Shan(jingshanzhao@mail.tsinghua.edu.cn)
摘要	Pennaceous feathers capable of forming aerodynamic surfaces are characteristic of Pennaraptora, the group comprising birds and their closest relatives among non-avian dinosaurs. However, members of the basal pennaraptoran lineage Oviraptorosauria were clearly flightless, and the function of pennaceous feathers on the forelimb in oviraptorosaurs is still uncertain. In the basal oviraptorosaur Caudipteryx both the skeleton and the plumage, which includes pennaceous feathers forming wing-like arrangements on the forelimbs, are well known. We used mathematical analyses, computer simulations and experiments on a robot Caudipteryx with realistic wing proportions to test whether the wings of Caudipteryx could have generated aerodynamic forces useful in rapid terrestrial locomotion. These various approaches show that, if both wings were held in a fixed and laterally extended position, they would have produced only small amounts of lift and drag. A partial simulation of flapping while running showed similarly limited aerodynamic force production. These results are consistent with the possibility that pennaceous feathers first evolved for a non-locomotor function such as display, but the effects of flapping and the possible contribution of the wings during manoeuvres such as braking and turning remain to be more fully investigated.
DOI	10.1038/s41598-018-35966-4
关键词[WOS]	BIZARRE JURASSIC MANIRAPTORAN ; AVIAN FLIGHT ; EVOLUTION ; BIOMECHANICS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51575291] ; National Major Science and Technology Project of China[2015ZX04002101] ; State Key Laboratory of Tribology, Tsinghua University ; Tsinghua University ; Natural Sciences and Engineering Research Council of Canada[RGPIN-2017-06246]
项目资助者	National Natural Science Foundation of China ; National Major Science and Technology Project of China ; State Key Laboratory of Tribology, Tsinghua University ; Tsinghua University ; Natural Sciences and Engineering Research Council of Canada
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000453224400015
出版者	NATURE PUBLISHING GROUP
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/9102
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Zhao, Jing-Shan
作者单位	1.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China 2.Univ Alberta, Dept Biol Sci, CW405 Biol Sci Bldg, Edmonton, AB T6G 2E9, Canada 3.Philip J Currie Dinosaur Museum, Wembley, AB TS0 30H, Canada 4.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	Talori, Yaser Saffar,Liu, Yun-Fei,Zhao, Jing-Shan,et al. Winged forelimbs of the small theropod dinosaur Caudipteryx could have generated small aerodynamic forces during rapid terrestrial locomotion[J]. SCIENTIFIC REPORTS,2018,8:14.
APA	Talori, Yaser Saffar,Liu, Yun-Fei,Zhao, Jing-Shan,Sullivan, Corwin,O'Connor, Jingmai K.,&Li, Zhi-Heng.(2018).Winged forelimbs of the small theropod dinosaur Caudipteryx could have generated small aerodynamic forces during rapid terrestrial locomotion.SCIENTIFIC REPORTS,8,14.
MLA	Talori, Yaser Saffar,et al."Winged forelimbs of the small theropod dinosaur Caudipteryx could have generated small aerodynamic forces during rapid terrestrial locomotion".SCIENTIFIC REPORTS 8(2018):14.