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Death march of a segmented and trilobate bilaterian elucidates early animal evolution
Chen, Zhe1,2; Zhou, Chuanming2,3; Yuan, Xunlai1,2,4; Xiao, Shuhai5
2019-09-19
Source PublicationNATURE
ISSN0028-0836
Volume573Issue:7774Pages:412-+
AbstractThe origin of motility in bilaterian animals represents an evolutionary innovation that transformed the Earth system. This innovation probably occurred in the late Ediacaran period-as evidenced by an abundance of trace fossils (ichnofossils) dating to this time, which include trails, trackways and burrows(1-3). However, with few exceptions(4-8), the producers of most of the late Ediacaran ichnofossils are unknown, which has resulted in a disconnection between the body-and trace-fossil records. Here we describe the fossil of a bilaterian of the terminal Ediacaran period (dating to 551-539 million years ago), which we name Yilingia spiciformis (gen. et sp. nov). This body fossil is preserved along with the trail that the animal produced during a death march. Yilingia is an elongate and segmented bilaterian with repetitive and trilobate body units, each of which consists of a central lobe and two posteriorly pointing lateral lobes, indicating body and segment polarity. Yilingia is possibly related to panarthropods or annelids, and sheds light on the origin of segmentation in bilaterians. As one of the few Ediacaran animals demonstrated to have produced long and continuous trails, Yilingia provides insights into the identity of the animals that were responsible for Ediacaran trace fossils.
DOI10.1038/s41586-019-1522-7
Language英语
WOS KeywordBIOTURBATION ; TRACES
Funding ProjectChinese Academy of Sciences[XDB26000000] ; Chinese Academy of Sciences[XDB18000000] ; Chinese Academy of Sciences[QYZDJ-SSW-DQC009] ; National Key Research and Development Program of China[2017YFC0603101] ; National Natural Science Foundation of China[41372009] ; National Science Foundation[EAR-1528553] ; National Geographic Society[9564-14]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000486647800049
Funding OrganizationChinese Academy of Sciences ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Science Foundation ; National Geographic Society
PublisherNATURE PUBLISHING GROUP
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/27874
Collection中国科学院南京地质古生物研究所
Corresponding AuthorYuan, Xunlai; Xiao, Shuhai
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Jiangsu, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing, Jiangsu, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, CAS Key Lab Econ Stratig & Palaeogeog, Nanjing, Jiangsu, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Virginia Tech, Dept Geosci, Blacksburg, VA 24061 USA
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Chen, Zhe,Zhou, Chuanming,Yuan, Xunlai,et al. Death march of a segmented and trilobate bilaterian elucidates early animal evolution[J]. NATURE,2019,573(7774):412-+.
APA Chen, Zhe,Zhou, Chuanming,Yuan, Xunlai,&Xiao, Shuhai.(2019).Death march of a segmented and trilobate bilaterian elucidates early animal evolution.NATURE,573(7774),412-+.
MLA Chen, Zhe,et al."Death march of a segmented and trilobate bilaterian elucidates early animal evolution".NATURE 573.7774(2019):412-+.
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