Geological age of the Yunyang dinosaur eggs revealed by <i>in-situ</i> carbonate U-Pb dating and its scientific implications

doi:10.3389/feart.2025.1638838

IVPP-IR

	*Geological age of the Yunyang dinosaur eggs revealed by in-situ* carbonate U-Pb dating and its scientific implications**
	Chen, Qingmin 1; Cheng, Xing 1,2; Wang, Jian 3; Zhao, Bi 4,5,6; Zhang, Shukang 7; Ning, Youfeng 3; Wang, Gaohong 1; He, Kaikai 1; Zhang, Wenshuo 1; Yu, Dongxiang 8; Li, Jiangli 4,5; Zou, Yarui 4,5; Chen, Gang 4; Li, Min 8; Cheng, Hai 2,3
	2025-09-11
发表期刊	FRONTIERS IN EARTH SCIENCE
卷号	13 页码:11
通讯作者	Zhao, Bi(kamp_m@163.com)
摘要	The Cretaceous Period, marked by global events such as volcanic activity, oceanic anoxic episodes, and the end-Cretaceous mass extinction, has been extensively studied in marine records. However, terrestrial Cretaceous systems remain understudied except in regions like northeastern China. Dinosaur eggs, abundant in Upper Cretaceous terrestrial strata, provide critical insights into paleoenvironments, climate, and biotic evolution. The Qinglongshan site in Yunyang District, Shiyan, Hubei Province, preserves thousands of semi-exposed, three-dimensionally intact dinosaur eggs with minimal deformation, offering a rare opportunity to study nesting behavior and environmental dynamics. Preliminary studies classified these eggs as Placoolithus tumiaolingensis (Dendroolithidae), but their chronostratigraphic context remains poorly constrained, hindering regional correlations. This study addresses this research gap by applying Laser Ablation Multi-Collector Inductively Coupled Plasma Mass Spectrometer (LA-MC-ICP-MS) U-Pb dating to biogenic calcite samples from egg - bearing horizons, and the test results indicate an depositional age (DA) of 85.91 +/- 1.74 Ma. The results aim to establish a robust chronological framework for the Qinglongshan egg assemblage for the first time, enhancing understanding of Late Cretaceous terrestrial ecosystems in China's interior and their response to global environmental changes. This study underscores the potential of dinosaur egg fossils as proxies for reconstructing the "Cretaceous World" in terrestrial settings.
关键词	Yunyang dinosaur eggs carbonate U-Pb dating geological age Late Cretaceous LA-MC-ICP-MS
DOI	10.3389/feart.2025.1638838
关键词[WOS]	ISOTOPIC EVIDENCE ; TIANTAI BASIN ; PROVINCE ; MIDDLE ; CHINA
收录类别	SCI
语种	英语
资助项目	Commonweal Geological Survey Project of Shaanxi Province[202507] ; Commonweal Geological Survey Project of Shaanxi Province[202310] ; Natural Science Foundation of Hubei Province[2024AFD380] ; National Natural Science Foundation of China[42272020] ; Science and Technology Innovation Project of Laoshan Laboratory[LSKJ202203300] ; Scientific Research Project of Hubei Geological Bureau[KJ2023-2] ; Scientific Research Project of Hubei Geological Bureau[KJ2025-3] ; Shaanxi Provincial Key Research and Development Plan General Project-Social Development Field[2024SF-YBXM-561] ; Opening Fund of State Key Laboratory of Loess and Quaternary Geology[SKLLQG2209] ; Shaanxi Science and Technology Association Youth Talent Lifting Program[20230538]
项目资助者	Commonweal Geological Survey Project of Shaanxi Province ; Natural Science Foundation of Hubei Province ; National Natural Science Foundation of China ; Science and Technology Innovation Project of Laoshan Laboratory ; Scientific Research Project of Hubei Geological Bureau ; Shaanxi Provincial Key Research and Development Plan General Project-Social Development Field ; Opening Fund of State Key Laboratory of Loess and Quaternary Geology ; Shaanxi Science and Technology Association Youth Talent Lifting Program
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001578182000001
出版者	FRONTIERS MEDIA SA
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/25002
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Zhao, Bi
作者单位	1.Shaanxi Inst Geol Survey, Shaanxi Expt Ctr Geol Survey, Xian, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess Sci, Xian, Peoples R China 3.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China 4.Hubei Geol Bur, Hubei Inst Geosci, Wuhan, Peoples R China 5.Hubei Geol Bur, Hubei Key Lab Resources & Ecoenvironm Geol, Wuhan, Peoples R China 6.Wuhan Ctr China Geol Survey, Hubei Key Lab Paleontol & Geol Environm Evolut, Wuhan, Peoples R China 7.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 8.Hubei Qinglongshan Natl Nat Reserve Dinosaur Egg F, Shiyan, Peoples R China
推荐引用方式 GB/T 7714	Chen, Qingmin,Cheng, Xing,Wang, Jian,et al. Geological age of the Yunyang dinosaur eggs revealed by in-situ carbonate U-Pb dating and its scientific implications[J]. FRONTIERS IN EARTH SCIENCE,2025,13:11.
APA	Chen, Qingmin.,Cheng, Xing.,Wang, Jian.,Zhao, Bi.,Zhang, Shukang.,...&Cheng, Hai.(2025).Geological age of the Yunyang dinosaur eggs revealed by in-situ carbonate U-Pb dating and its scientific implications.FRONTIERS IN EARTH SCIENCE,13,11.
MLA	Chen, Qingmin,et al."Geological age of the Yunyang dinosaur eggs revealed by in-situ carbonate U-Pb dating and its scientific implications".FRONTIERS IN EARTH SCIENCE 13(2025):11.