An exquisitely preserved in-ovo theropod dinosaur embryo sheds light on avian-like prehatching postures

doi:10.1016/j.isci.2021.103516

IVPP-IR > 中科院古脊椎所（2000年以后）

	An exquisitely preserved in-ovo theropod dinosaur embryo sheds light on avian-like prehatching postures
	Xing, Lida 1,2,3; Niu, Kecheng 3; Ma, Waisum 4; Zelenitsky, Darla K.5; Yang, Tzu-Ruei 6,8; Brusatte, Stephen L.7
	2022-01-21
发表期刊	ISCIENCE
卷号	25 期号:1 页码:14
通讯作者	Ma, Waisum(w.ma.1@pgr.bham.ac.uk)
摘要	Despite the discovery of many dinosaur eggs and nests over the past 100 years, articulated in-ovo embryos are remarkably rare. Here we report an exceptionally preserved, articulated oviraptorid embryo inside an elongatoolithid egg, from the Late Cretaceous Hekou Formation of southern China. The head lies ventral to the body, with the feet on either side, and the back curled along the blunt pole of the egg, in a posture previously unrecognized in a non-avian dinosaur, but reminiscent of a late-stage modern bird embryo. Comparison to other late-stage oviraptorid embryos sugjests that prehatch oviraptorids developed avian-like postures late in incubation, which in modern birds are related to coordinated embryonic movements associated with tucking - a behavior controlled by the central nervous system, critical for hatching success. We propose that such pre-hatching behavior, previously considered unique to birds, may have originated among non-avian theropods, which can be further investigated with additional discoveries of embryo fossils.
DOI	10.1016/j.isci.2021.103516
关键词[WOS]	HATCHING BEHAVIOR ; PHYLOGENETIC ANALYSIS ; BIRD ; EGGS ; REPRODUCTION ; MONGOLIA ; SKELETON ; BASIN
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41790455] ; National Natural Science Foundation of China[41772008] ; 111 Project[B20011] ; Fundamental Research Funds for the Central Universities[265QZ201903] ; Natural Sciences and Engineering Research Council of Canada[327513-2009] ; Ministry of Science and Technology, Taiwan[MOST 108-2116-M-178-003-MY2]
项目资助者	National Natural Science Foundation of China ; 111 Project ; Fundamental Research Funds for the Central Universities ; Natural Sciences and Engineering Research Council of Canada ; Ministry of Science and Technology, Taiwan
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000747073100005
出版者	CELL PRESS
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/19280
专题	中科院古脊椎所（2000年以后）
通讯作者	Ma, Waisum
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.Yingliang Stone Nat Hist Museum, Nanan 362300, Peoples R China 4.Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham, W Midlands, England 5.Univ Calgary, Dept Geosci, Calgary, AB, Canada 6.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 7.Univ Edinburgh, Sch GeoSci, Edinburgh, Midlothian, Scotland 8.Natl Museum Nat Sci, Dept Geol, Guanqian Rd 1, Taichung 404605, Taiwan
推荐引用方式 GB/T 7714	Xing, Lida,Niu, Kecheng,Ma, Waisum,et al. An exquisitely preserved in-ovo theropod dinosaur embryo sheds light on avian-like prehatching postures[J]. ISCIENCE,2022,25(1):14.
APA	Xing, Lida,Niu, Kecheng,Ma, Waisum,Zelenitsky, Darla K.,Yang, Tzu-Ruei,&Brusatte, Stephen L..(2022).An exquisitely preserved in-ovo theropod dinosaur embryo sheds light on avian-like prehatching postures.ISCIENCE,25(1),14.
MLA	Xing, Lida,et al."An exquisitely preserved in-ovo theropod dinosaur embryo sheds light on avian-like prehatching postures".ISCIENCE 25.1(2022):14.