Exceptional Early Jurassic fossils with leathery eggs shed light on dinosaur reproductive biology
文献类型：期刊论文
| 作者 | Han, Fenglu7 ; Yu, Yilun5,6; Zhang, Shukang6; Zeng, Rong4; Wang, Xinjin3; Cai, Huiyang4; Wu, Tianzhuang4; Wen, Yingfeng2; Cai, Sifu4; Li, Chun6
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| 刊名 | NATIONAL SCIENCE REVIEW
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| 出版日期 | 2023-10-09 |
| 页码 | 13 |
| 关键词 | dinosaur sauropodomorph Jurassic embryo egg evolution reproductive behavior |
| ISSN号 | 2095-5138 |
| DOI | 10.1093/nsr/nwad258 |
| 通讯作者 | Han, Fenglu(hanfl@cug.edu.cn) ; Xu, Xing(xu.xing@ivpp.ac.cn) |
| 英文摘要 | Our understanding of pre-Cretaceous dinosaur reproduction is hindered by a scarcity of evidence within fossil records. Here we report three adult skeletons and five clutches of embryo-containing eggs of a new sauropodomorph from the Lower Jurassic of southwestern China, displaying several significant reproductive features that are either unknown or unlike other early-diverging sauropodomorphs, such as relatively large eggs with a relatively thick calcareous shell formed by prominent mammillary cones, synchronous hatching and a transitional prehatching posture between the crocodilians and living birds. Most significantly, these Early Jurassic fossils provide strong evidence for the earliest known leathery eggs. Our comprehensive quantitative analyses demonstrate that the first dinosaur eggs were probably leathery, elliptical and relatively small, but with relatively long eggshell units, and that along the line to living birds, the most significant change in reptilian egg morphology occurred early in theropod evolution rather than near the origin of Aves. The earliest dinosaur eggs were probably leathery, relatively small and thin-shelled but theropod eggs become much larger and elongated. |
| WOS关键词 | PHYLOGENETIC-RELATIONSHIPS ; SAUROPOD DINOSAUR ; ANATOMY ; YUNNAN ; MASSOSPONDYLUS ; PROSAUROPODA ; EMBRYOS ; YOUNG ; SKULL |
| 资助项目 | We thank Guizhou Provincial Museum for permission and research support; Krishna Hu for editing the manuscript; Shihui Mei, Zhenhuang Luo and Song Luo for collecting the specimens; Jinchao Ding for preparing the specimens; Shunyi Shi for Fig. 1b; Minghui Re |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001097659300001 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | We thank Guizhou Provincial Museum for permission and research support; Krishna Hu for editing the manuscript; Shihui Mei, Zhenhuang Luo and Song Luo for collecting the specimens; Jinchao Ding for preparing the specimens; Shunyi Shi for Fig. 1b; Minghui Re |
| 源URL | [http://119.78.100.205/handle/311034/23030]  |
| 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; Xu, Xing |
| 作者单位 | 1.Yunnan Univ, Ctr Vertebrate Evolutionary Biol, Kunming 650091, Peoples R China 2.Pingba Inst Cultural Rel Adm, Anshun 550820, Peoples R China 3.Guizhou Prov Inst Cultural Rel & Archaeol, Guiyang 550003, Peoples R China 4.Guizhou Prov Museum, Guiyang 550081, Peoples R China 5.Univ Chinese Acad Sci, Beijing 101408, Peoples R China 6.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 7.China Univ Geosci Wuhan, Sch Earth Sci, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Fenglu,Yu, Yilun,Zhang, Shukang,et al. Exceptional Early Jurassic fossils with leathery eggs shed light on dinosaur reproductive biology[J]. NATIONAL SCIENCE REVIEW,2023:13. |
| APA | Han, Fenglu.,Yu, Yilun.,Zhang, Shukang.,Zeng, Rong.,Wang, Xinjin.,...&Xu, Xing.(2023).Exceptional Early Jurassic fossils with leathery eggs shed light on dinosaur reproductive biology.NATIONAL SCIENCE REVIEW,13. |
| MLA | Han, Fenglu,et al."Exceptional Early Jurassic fossils with leathery eggs shed light on dinosaur reproductive biology".NATIONAL SCIENCE REVIEW (2023):13. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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