A new oviraptorosaur from the Lower Cretaceous Miaogou Formation of western Inner Mongolia, China

doi:10.1016/j.cretres.2024.106023

IVPP-IR

	A new oviraptorosaur from the Lower Cretaceous Miaogou Formation of western Inner Mongolia, China
	Hao, Mingze 1,2; Li, Zhiyu 3; Wang, Zhili 3; Wang, Shuqiong 3; Ma, Feimin 4; King, J. Logan 1,2; Pei, Rui 1; Zhao, Qi 1,2; Xu, Xing1,5
	2025-03-01
发表期刊	CRETACEOUS RESEARCH
ISSN	0195-6671
卷号	167 页码:15
通讯作者	Xu, Xing(xing.xu@ivpp.ac.cn)
摘要	A new oviraptorosaur, Yuanyanglong bainian gen. et sp. nov. is described based on two specimens recovered from the Lower Cretaceous Miaogou Formation of the Maortu locality in Chilantai, Inner Mongolia, China. This new species is intermediate in morphology between the earliest-diverging and late-diverging oviraptorosaurs, and our phylogenetic analysis supports it as a sister taxon to the clade formed by Avimimidae and Caenagathoidea. Notably, this new early-diverging oviraptorosaur has an ilium with an extremely short postacetabular process and hindlimbs with proportionally elongate and fused lower segments, a character combination unknown among other oviraptorosaurs but common in wading birds, suggesting a potential ecology involving wading. Preserved gastroliths similar to Caudipteryx suggest a gastric mill function in our new species, and our preliminary observations indicate potential discrepancies in the digestion mode of early- and late-diverging oviraptorosaurs. (c) 2024 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
关键词	Oviraptorosauria Early Cretaceous Maortu Ecology Gastrolith
DOI	10.1016/j.cretres.2024.106023
关键词[WOS]	THEROPODA OVIRAPTOROSAURIA ; DINOSAURIA THEROPODA ; AVIALAN THEROPOD ; NEI MONGOL ; CHIROSTENOTES ; MORPHOLOGY ; OSTEOLOGY ; MASS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42288201] ; National Natural Science Foundation of China[42372031] ; National Natural Science Foundation of China[41972025] ; Yunnan Revitalization Talent Support Program[202305AB350006]
项目资助者	National Natural Science Foundation of China ; Yunnan Revitalization Talent Support Program
WOS研究方向	Geology ; Paleontology
WOS类目	Geology ; Paleontology
WOS记录号	WOS:001357519200001
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/311034/23867
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Xu, Xing
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Inner Mongolia Museum Nat Hist, Hohhot 010010, Peoples R China 4.Inner Mongolia Inst Geol Survey, Hohhot 010020, Peoples R China 5.Yunnan Univ, Ctr Vertebrate Evolutionary Biol, Kunming 650091, Peoples R China
推荐引用方式 GB/T 7714	Hao, Mingze,Li, Zhiyu,Wang, Zhili,et al. A new oviraptorosaur from the Lower Cretaceous Miaogou Formation of western Inner Mongolia, China[J]. CRETACEOUS RESEARCH,2025,167:15.
APA	Hao, Mingze.,Li, Zhiyu.,Wang, Zhili.,Wang, Shuqiong.,Ma, Feimin.,...&Xu, Xing.(2025).A new oviraptorosaur from the Lower Cretaceous Miaogou Formation of western Inner Mongolia, China.CRETACEOUS RESEARCH,167,15.
MLA	Hao, Mingze,et al."A new oviraptorosaur from the Lower Cretaceous Miaogou Formation of western Inner Mongolia, China".CRETACEOUS RESEARCH 167(2025):15.