A flattened enantiornithine in mid-Cretaceous Burmese amber: morphology and preservation

doi:10.1016/j.scib.2018.01.019

	A flattened enantiornithine in mid-Cretaceous Burmese amber: morphology and preservation
	Xing, Lida 1,2; O'Connor, Jingmai K.3; McKellar, Ryan C.4,5,6; Chiappe, Luis M.7; Bai, Ming 8; Tseng, Kuowei 9; Zhang, Jie 10; Yang, Haidong 8; Fang, Jun 2; Li, Gang 10
刊名	SCIENCE BULLETIN
	2018-02-28
卷号	63 期号:4 页码:235-243
关键词	Enantiornithes Juvenile Osteology Soft Tissue Preservation
ISSN号	2095-9273
DOI	10.1016/j.scib.2018.01.019
文献子类	Article
英文摘要	Cretaceous amber from Myanmar (similar to 99 Ma Burmese amber) has become a valuable supplement to the traditional skeletal record of small theropod dinosaurs preserved in sedimentary rocks, particularly for coelurosaurs and enantiornithines. The specimens recovered from this deposit preserve skeletal material and soft tissues in unmatched detail. This provides opportunities to study three-dimensional preservation of soft tissues, microstructure, and pigmentation patterns that are seldom available else-where in the fossil record. Ultimately, this line of research provides insights into life stages that are difficult to preserve, the ecology and appearance of the groups involved, and the evolutionary-development of structures such as feathers. Here we describe the most recent discovery from Burmese amber, an articulated skeleton of an enantiornithine bird. This individual has been sectioned along the coronal plane, providing a unique view inside multiple body regions. Osteological observations and plumage patterns support placement within the Enantiornithes, and suggest that the animal may have been a juvenile at the time of death. The specimen has a complex taphonomic history that includes exposure at the surface of a resin flow prior to encapsulation, and may include scavenging by some of the insects trapped within the same amber piece. The chemical composition observed along surface exposures and shallowly buried regions of the body indicate that the specimen has not undergone significant exchange with its surroundings. High iron concentrations are present in regions that preserve soft tissues as carbon films, and calcium distribution corresponds to regions where bones breach the surface of the amber. (C) 2018 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
WOS关键词	PLUMAGE ; BIRD
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000425946900008
资助机构	National Natural Science Foundation of China(41790455 ; Natural Sciences and Engineering Research Council of Canada(201500681) ; Chinese Academy of Sciences(YZ201509) ; National Geographic Society, USA(EC0768-15) ; 41772008 ; 31672345 ; NSFC-J1210002)
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/8743]
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	McKellar, Ryan C.; Li, Gang
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 Origins, 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, Lawrence, KS 66045 USA 7.Nat Hist Museum Los Angeles Cty, Dinosaur Inst, Los Angeles, CA 90007 USA 8.Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Beijing 100101, Peoples R China 9.Univ Taipei, Dept Exercise & Hlth Sci, Taipei 11153, Taiwan 10.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xing, Lida,O'Connor, Jingmai K.,McKellar, Ryan C.,et al. A flattened enantiornithine in mid-Cretaceous Burmese amber: morphology and preservation[J]. SCIENCE BULLETIN,2018,63(4):235-243.
APA	Xing, Lida.,O'Connor, Jingmai K..,McKellar, Ryan C..,Chiappe, Luis M..,Bai, Ming.,...&Li, Gang.(2018).A flattened enantiornithine in mid-Cretaceous Burmese amber: morphology and preservation.SCIENCE BULLETIN,63(4),235-243.
MLA	Xing, Lida,et al."A flattened enantiornithine in mid-Cretaceous Burmese amber: morphology and preservation".SCIENCE BULLETIN 63.4(2018):235-243.