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

文献类型：期刊论文

作者Hao, Mingze4,5; Li, Zhiyu3; Wang, Zhili3; Wang, Shuqiong3; Ma, Feimin2; King, J. Logan4,5; Pei, Rui5; Zhao, Qi4,5; Xu, Xing1,5
刊名CRETACEOUS RESEARCH
出版日期2025-03-01
卷号167页码:15
关键词Oviraptorosauria Early Cretaceous Maortu Ecology Gastrolith
ISSN号0195-6671
DOI10.1016/j.cretres.2024.106023
通讯作者Xu, Xing(xing.xu@ivpp.ac.cn)
英文摘要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.
WOS关键词THEROPODA OVIRAPTOROSAURIA ; DINOSAURIA THEROPODA ; AVIALAN THEROPOD ; NEI MONGOL ; CHIROSTENOTES ; MORPHOLOGY ; OSTEOLOGY ; MASS
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]
WOS研究方向Geology ; Paleontology
语种英语
WOS记录号WOS:001357519200001
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China ; Yunnan Revitalization Talent Support Program
源URL[http://119.78.100.205/handle/311034/23866]  
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.Yunnan Univ, Ctr Vertebrate Evolutionary Biol, Kunming 650091, Peoples R China
2.Inner Mongolia Inst Geol Survey, Hohhot 010020, Peoples R China
3.Inner Mongolia Museum Nat Hist, Hohhot 010010, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, 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.

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来源：古脊椎动物与古人类研究所

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