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A New Enantiornithine (Aves) Preserved in Mid-Cretaceous Burmese Amber Contributes to Growing Diversity of Cretaceous Plumage Patterns

文献类型：期刊论文

作者Xing, Lida3,4,5; O'Connor, Jingmai K.1,2; Niu, Kecheng3; Cockx, Pierre9,10; Mai, Huijuan7,8; McKellar, Ryan C.6,9,10
刊名FRONTIERS IN EARTH SCIENCE
出版日期2020-07-16
卷号8期号:0页码:11
关键词enantiornithes remiges flight feathers plumage patterns limb proportions intermembral index albian - cenomanian mesozoic
DOI10.3389/feart.2020.00264
英文摘要Recent discoveries of enantiornithine birds trapped in amber have decreased the lower size limit of members of this clade, increased their morphological diversity, and provided significant new data regarding their plumage. Here, we describe a new specimen that consists of the distal extremities of both forelimbs and hindlimbs. Size and morphology suggest the specimen represents an immature individual. Although the skeletal morphology is poorly preserved, the new specimen most probably represents a member of the Enantiornithes based on the sum of its preserved morphologies, including its small size, elongate penultimate pedal phalanges, and large recurved unguals. Based on the lengths of the metatarsals, the new specimen is even smaller than previously described enantiornithines that preserve these elements; however, the forelimb elements are longer than those in the only other specimen preserving comparable overlapping skeletal material. This is suggestive of a diversity of limb proportions in the Burmese enantiornithine fauna, similar to that observed in the Jehol avifauna, in which intermembral indices range from approximately 1 to 1.5. The wing appears to consist of eight primaries, less than that of neornithines, contributing to mounting data that suggests the flight apparatus of enantiornithines was unique from that of other basal birds and neornithines. The well-preserved flight feathers are ornamented with pale basal bands, further adding to the diversity of Cretaceous plumage patterns revealed by Burmese amber specimens.
WOS关键词THEROPOD DINOSAUR ; BIRDS ; ORNITHOTHORACES ; EVOLUTION ; HABITATS
资助项目National Natural Science Foundation of China[41790455] ; National Natural Science Foundation of China[41772008] ; Natural Sciences and Engineering Research Council of Canada[2015-00681] ; National Geographic Society, United States[EC0768-15] ; The Foreign Cultural and Educational Experts Employment Program from Foreign Experts Service Division, Ministry of Science and Technology of China[G20190001245]
WOS研究方向Geology
语种英语
WOS记录号WOS:000556790400001
出版者FRONTIERS MEDIA SA
源URL[http://119.78.100.205/handle/311034/16642]  
专题古脊椎动物与古人类研究所_图书馆1
通讯作者O'Connor, Jingmai K.
作者单位1.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China
3.Yingliang Stone Nat Hist Museum, Nanan, Peoples R China
4.China Univ Geosci, Sch Earth Sci & Resources, Beijing, Peoples R China
5.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing, Peoples R China
6.Univ Kansas, Dept Ecol & Evolutionary Biol, Lawrence, KS 66045 USA
7.Yunnan Univ, MEC Int Lab Palaeobiol & Palaeoenvironm, Kunming, Yunnan, Peoples R China
8.Yunnan Univ, Yunnan Key Lab Palaeobiol, Kunming, Yunnan, Peoples R China
9.Univ Regina, Dept Biol, Regina, SK, Canada
10.Royal Saskatchewan Museum, Regina, SK, Canada
推荐引用方式
GB/T 7714		 Xing, Lida,O'Connor, Jingmai K.,Niu, Kecheng,et al. A New Enantiornithine (Aves) Preserved in Mid-Cretaceous Burmese Amber Contributes to Growing Diversity of Cretaceous Plumage Patterns[J]. FRONTIERS IN EARTH SCIENCE,2020,8(0):11.
APA Xing, Lida,O'Connor, Jingmai K.,Niu, Kecheng,Cockx, Pierre,Mai, Huijuan,&McKellar, Ryan C..(2020).A New Enantiornithine (Aves) Preserved in Mid-Cretaceous Burmese Amber Contributes to Growing Diversity of Cretaceous Plumage Patterns.FRONTIERS IN EARTH SCIENCE,8(0),11.
MLA Xing, Lida,et al."A New Enantiornithine (Aves) Preserved in Mid-Cretaceous Burmese Amber Contributes to Growing Diversity of Cretaceous Plumage Patterns".FRONTIERS IN EARTH SCIENCE 8.0(2020):11.

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来源：古脊椎动物与古人类研究所

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