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  2. 地质与地球物理研究所
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  4. 中国科学院新生代地质与环境重点实验室
An Early Cretaceous eutherian and the placental-marsupial dichotomy

文献类型：期刊论文

作者Bi, Shundong1,2,3; Zheng, Xiaoting4,5; Wang, Xiaoli4,5; Cignetti, Natalie E.2; Yang, Shiling6,7; Wible, John R.3
刊名NATURE
出版日期2018-06-21
卷号558期号:7710页码:390-+
ISSN号0028-0836
DOI10.1038/s41586-018-0210-3
英文摘要Molecular estimates of the divergence of placental and marsupial mammals and their broader clades (Eutheria and Metatheria, respectively) fall primarily in the Jurassic period. Supporting these estimates, Juramaiathe oldest purported eutherianis from the early Late Jurassic (160 million years ago) of northeastern China. Sinodelphysthe oldest purported metatherianis from the same geographic area but is 35 million years younger, from the Jehol biota. Here we report a new Jehol eutherian, Ambolestes zhoui, with a nearly complete skeleton that preserves anatomical details that are unknown from contemporaneous mammals, including the ectotympanic and hyoid apparatus. This new fossil demonstrates that Sinodelphys is a eutherian, and that postcranial differences between Sinodelphys and the Jehol eutherian Eomaiapreviously thought to indicate separate invasions of a scansorial niche by eutherians and metatheriansare instead variations among the early members of the placental lineage. The oldest known metatherians are now not from eastern Asia but are 110 million years old from western North America, which produces a 50-million-year ghost lineage for Metatheria.
WOS关键词MAMMALIAN MIDDLE-EAR ; JEHOL BIOTA ; PHYLOGENY ; EVOLUTION ; CHINA ; UZBEKISTAN ; SKULL
资助项目National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41728003] ; National Natural Science Foundation of China[41372014] ; National Natural Science Foundation of China[41472023] ; Chinese Academy of Sciences[XDPB0503] ; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University ; National Science Foundation[DEB 1654949] ; Carnegie Museum of Natural History
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000436037800039
出版者NATURE PUBLISHING GROUP
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University ; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University ; National Science Foundation ; National Science Foundation ; Carnegie Museum of Natural History ; Carnegie Museum of Natural History ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University ; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University ; National Science Foundation ; National Science Foundation ; Carnegie Museum of Natural History ; Carnegie Museum of Natural History ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University ; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University ; National Science Foundation ; National Science Foundation ; Carnegie Museum of Natural History ; Carnegie Museum of Natural History ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University ; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University ; National Science Foundation ; National Science Foundation ; Carnegie Museum of Natural History ; Carnegie Museum of Natural History
源URL[http://ir.iggcas.ac.cn/handle/132A11/88175]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Bi, Shundong; Wang, Xiaoli; Wible, John R.
作者单位1.Yunnan Univ, Yunnan Key Lab Palaeobiol, Kunming, Yunnan, Peoples R China
2.Indiana Univ Penn, Dept Biol, Indiana, PA 15705 USA
3.Carnegie Museum Nat Hist, Pittsburgh, PA 15213 USA
4.Linyi Univ, Inst Geol & Paleontol, Linyi, Peoples R China
5.Tianyu Museum Nat, Linyi, Peoples R China
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
7.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Bi, Shundong,Zheng, Xiaoting,Wang, Xiaoli,et al. An Early Cretaceous eutherian and the placental-marsupial dichotomy[J]. NATURE,2018,558(7710):390-+.
APA Bi, Shundong,Zheng, Xiaoting,Wang, Xiaoli,Cignetti, Natalie E.,Yang, Shiling,&Wible, John R..(2018).An Early Cretaceous eutherian and the placental-marsupial dichotomy.NATURE,558(7710),390-+.
MLA Bi, Shundong,et al."An Early Cretaceous eutherian and the placental-marsupial dichotomy".NATURE 558.7710(2018):390-+.

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来源：地质与地球物理研究所

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