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Surprisingly young age for the mamenchisaurid sauropods in South China
Wang, Jun1,2,3; Norell, Mark A.4; Pei, Rui2,5; Ye, Yong6; Chang, Su-Chin2
2019-12-01
Source PublicationCRETACEOUS RESEARCH
ISSN0195-6671
Volume104Pages:9
AbstractMamenchisauridae, a sauropod group named after the largest known proto-Asian sauropod Mamenchisaurus, is generally believed to range from the Early to the Late Jurassic in age. Fossil remains of Mamenchisaurus are primarily found in the Upper Shaximiao Formation and less frequently in the overlying Suining Formation in the Sichuan Basin. An accurate absolute age for Mamenchisaurus is critical for understanding the evolution and radiation of the mamenchisaurids. However, reliable age determinations for the Mamenchisaurus-bearing formations are lacking. In this study, we provide robust detrital zircon U/Pb ages (mean ages of 114.4 +/- 1.1 Ma; Aptian) for rocks from the classic fossil outcrops of the Suining Formation in the Sichuan Basin. Our data indicate an extremely long chronological gap between M. anyuensis (114.4 +/- 1.1 Ma) and the earlier Mamenchisaurus (Late Jurassic). This indicates mamenchisaurids may have lived at least 30 million years longer than previously thought. (C) 2019 Elsevier Ltd. All rights reserved.
KeywordBasal sauropods Early cretaceous Sichuan basin Zircon dating
DOI10.1016/j.cretres.2019.07.006
Language英语
WOS KeywordPHYLOGENETIC-RELATIONSHIPS ; CHUANJIE FORMATION ; DINOSAURIA ; EVOLUTION ; SICHUAN
Funding ProjectKey Laboratory of Economic Stratigraphy and Palaeogeography, Chinese Academy of Sciences (Nanjing Institute of Geology and Palaeontology)[2016KF05] ; University of Hong Kong[201611159045] ; Research Grants Council of Hong Kong[17308316]
WOS Research AreaGeology ; Paleontology
WOS SubjectGeology ; Paleontology
WOS IDWOS:000488316300001
Funding OrganizationKey Laboratory of Economic Stratigraphy and Palaeogeography, Chinese Academy of Sciences (Nanjing Institute of Geology and Palaeontology) ; University of Hong Kong ; Research Grants Council of Hong Kong
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/27820
Collection中国科学院南京地质古生物研究所
Corresponding AuthorPei, Rui; Chang, Su-Chin
Affiliation1.Yunnan Univ, Sch Resource Environm & Earth Sci, Kunming 650500, Yunnan, Peoples R China
2.Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Jiangsu, Peoples R China
4.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA
5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
6.Zigong Dinosaur Museum, Zigong 643013, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jun,Norell, Mark A.,Pei, Rui,et al. Surprisingly young age for the mamenchisaurid sauropods in South China[J]. CRETACEOUS RESEARCH,2019,104:9.
APA Wang, Jun,Norell, Mark A.,Pei, Rui,Ye, Yong,&Chang, Su-Chin.(2019).Surprisingly young age for the mamenchisaurid sauropods in South China.CRETACEOUS RESEARCH,104,9.
MLA Wang, Jun,et al."Surprisingly young age for the mamenchisaurid sauropods in South China".CRETACEOUS RESEARCH 104(2019):9.
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