A mid-Cretaceous enantiornithine (Aves) hatchling preserved in Burmese amber with unusual plumage

doi:10.1016/j.gr.2017.06.001

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	A mid-Cretaceous enantiornithine (Aves) hatchling preserved in Burmese amber with unusual plumage
	Xing, Lida 1,2; O'Connor, Jingmai K.3; McKellar, Ryan C.4,5,6; Chiappe, Luis M.7; Tseng, Kuowei 8; Li, Gang 9; Bai, Ming 10
刊名	GONDWANA RESEARCH
	2017-09-01
卷号	49 页码:264-277
关键词	Enantiornithes Juvenile Osteology Plumage Soft Tissue Preservation
DOI	10.1016/j.gr.2017.06.001
文献子类	Article
英文摘要	Burmese amber has recently provided some detailed glimpses of plumage, soft tissues, and osteology of juvenile enantiornithine birds, but these insights have been restricted to isolated wing apices. Here we describe nearly half of a hatchling individual, based on osteological and soft tissue data obtained from the skull, neck, feet, and wing, and identified as a member of the extinct avian Glade Enantiornithes. Preserved soft tissue provides the unique opportunity to observe the external opening of the ear, the eyelid, and fine details of tarsal scutellation. The new amber specimen yields the most complete view of hatchling plumage and integument yet to be recovered from the Cretaceous, including details of pterylosis, feather microstructure, and pigmentation patterns. The hatchling was encapsulated during the earliest stages of its feather production, providing a point for comparisons to other forms of body fossils, as well as isolated feathers found in Cretaceous ambers. The plumage preserves an unusual combination of precocial and altricial features unlike any living hatchling bird, having functional remiges combined with sparse body feathers. Unusual feather morphotypes on the legs, feet, and tail suggest that first generation feathers in the Enantiornithes may have been much more like contour feathers than the natal down observed in many modern birds. However, these regions also preserve filamentous feathers that appear comparable to the protofeathers observed in more primitive theropods. Overall, the new specimen brings a new level of detail to our understanding of the anatomy of the juvenile stages of the most species-rich Glade of pre-modern birds and contributes to mounting data that enantiornithine development drastically differed from that of Neornithes. (C) 2017 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
WOS关键词	EVOLUTIONARY ORIGIN ; BIRD ; ORNITHOTHORACES ; ARCHAEOPTERYX ; ARGENTINA ; HISTOLOGY ; FEATHERS ; DINOSAUR ; GROWTH ; SKULL
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000414383200014
资助机构	National Basic Research Program of China (973 Project)(2012CB822000) ; Natural Sciences and Engineering Research Council of Canada(2015-00681) ; National Geographic Society, USA(EC0768-15) ; National Natural Science Foundation of China (Special Subjects in Animal Taxonomy)(31672345 ; Chinese Academy of Sciences(YZ201509) ; NSFC-J1210002)
内容类型	期刊论文
源URL	[http://124.16.247.212/handle/311034/7873]
专题	古脊椎动物与古人类研究所_图书馆1
作者单位	1.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China 2.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Ongins, Beijing 100044, Peoples R China 4.Royal Saskatchewan Museum, Regina, SK S4P 4W7, Canada 5.Univ Regina, Biol Dept, Regina, SK S4S 0A2, Canada 6.Univ Kansas, Dept Ecol & Evolutionary Biol, 1501 Crestline Dr,Suite 140, Lawrence, KS 66045 USA 7.Nat Hist Museum Los Angeles Cty, Dinosaur Inst, 900 Exposit Blvd, Los Angeles, CA 90007 USA 8.Univ Taipei, Dept Exercise & Hlth Sci, Taipei 11153, Taiwan 9.Chinese Acad Sci, Inst High Energy Phys, 196 Yuquan Rd, Beijing 100049, Peoples R China 10.Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Box 92,Beichen West Rd, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Xing, Lida,O'Connor, Jingmai K.,McKellar, Ryan C.,et al. A mid-Cretaceous enantiornithine (Aves) hatchling preserved in Burmese amber with unusual plumage[J]. GONDWANA RESEARCH,2017,49:264-277.
APA	Xing, Lida.,O'Connor, Jingmai K..,McKellar, Ryan C..,Chiappe, Luis M..,Tseng, Kuowei.,...&Bai, Ming.(2017).A mid-Cretaceous enantiornithine (Aves) hatchling preserved in Burmese amber with unusual plumage.GONDWANA RESEARCH,49,264-277.
MLA	Xing, Lida,et al."A mid-Cretaceous enantiornithine (Aves) hatchling preserved in Burmese amber with unusual plumage".GONDWANA RESEARCH 49(2017):264-277.