A new ootype of putative dromaeosaurid eggs from the Upper Cretaceous of southern China

doi:10.1016/j.cretres.2024.105909

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	A new ootype of putative dromaeosaurid eggs from the Upper Cretaceous of southern China
	Wu, Rui 1; Niu, Kecheng 2,3; Zhang, Shukang 4; Xue, Yu 1; Han, Fenglu1
	2024-09-01
发表期刊	CRETACEOUS RESEARCH
ISSN	0195-6671
卷号	161 页码:11
通讯作者	Han, Fenglu(hanfl@cug.edu.cn)
摘要	Non -avian maniraptoran eggs are abundant in the Upper Cretaceous of China. Previous studies mainly focused on oviraptorosaur and troodontid eggs which can be classi fied into the oofamilies Elongatoolithidae and Prismatoolithidae, respectively. Here we report a new possible ootype of dromaeosaurid dinosaur recovered from the Lianhe Formation of the Ganzhou Basin. The new ootaxon, Gannanoolithus yingliangi oogen. et oosp. nov., is remarkable for its symmetrically elliptic shape and two structural layers with an abrupt and straight boundary. It shares a similar elongated shape, interlocked eggshell units, and an angusticanaliculate pore system with those of Deinonychus eggshell-like maniraptoran ootaxa reported from North America, Europe, and East Asia. The new phylogenetic analysis suggests the monophyly of dromaeosaurid and oviraptorosaurian eggs, and troodontid eggs are closely related to bird eggs. Paired eggs of Gannanoolithus might indicate that dromaeosaurid dinosaurs also have paired functional oviducts like oviraptorosaurs and troodontids. In addition, the porosity and EBSD analyses support that these eggs in the mound nests are buried. (c) 2024 Elsevier Ltd. All rights reserved.
关键词	Dinosaur eggs Gannanoolithus Late Cretaceous Lianhe Formation Ganzhou Basin
DOI	10.1016/j.cretres.2024.105909
关键词[WOS]	JIANGXI PROVINCE ; DINOSAUR EGGS ; HENAN PROVINCE ; OOSP NOV ; EGGSHELLS ; CLUTCH ; THEROPODA ; ASSEMBLAGE ; DIVERSITY ; EVOLUTION
收录类别	SCI
语种	英语
资助项目	National Natural Sci- ence Foundation of China[42288201] ; National Natural Sci- ence Foundation of China[42272020]
项目资助者	National Natural Sci- ence Foundation of China
WOS研究方向	Geology ; Paleontology
WOS类目	Geology ; Paleontology
WOS记录号	WOS:001242740500001
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/23735
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Han, Fenglu
作者单位	1.China Univ Geosci Wuhan, Sch Earth Sci, Wuhan 430074, Peoples R China 2.Xiamen Univ, Sch Life Sci, State Key Lab Cellular Stress Biol, Xiamen 361105, Peoples R China 3.Yingliang Stone Nat Hist Museum, Nanan 362300, Peoples R China 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Wu, Rui,Niu, Kecheng,Zhang, Shukang,et al. A new ootype of putative dromaeosaurid eggs from the Upper Cretaceous of southern China[J]. CRETACEOUS RESEARCH,2024,161:11.
APA	Wu, Rui,Niu, Kecheng,Zhang, Shukang,Xue, Yu,&Han, Fenglu.(2024).A new ootype of putative dromaeosaurid eggs from the Upper Cretaceous of southern China.CRETACEOUS RESEARCH,161,11.
MLA	Wu, Rui,et al."A new ootype of putative dromaeosaurid eggs from the Upper Cretaceous of southern China".CRETACEOUS RESEARCH 161(2024):11.