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Cretaceous arachnid Chimerarachne yingi gen. et sp nov illuminates spider origins
Wang, Bo (王博)1,2; Dunlop, Jason A.3; Selden, Paul A.4,5; Garwood, Russell J.5,6; Shear, William A.7; Mueller, Patrick8; Lei, Xiaojie (雷晓洁)9
2018-04-01
Source PublicationNATURE ECOLOGY & EVOLUTION
ISSN2397-334X
Volume2Issue:4Pages:614-622
Abstract

Spiders (Araneae) are a hugely successful lineage with a long history. Details of their origins remain obscure, with little knowledge of their stem group and few insights into the sequence of character acquisition during spider evolution. Here, we describe Chimerarachne yingi gen. et sp. nov., a remarkable arachnid from the mid-Cretaceous (approximately 100 million years ago) Burmese amber of Myanmar, which documents a key transition stage in spider evolution. Like uraraneids, the two fossils available retain a segmented opisthosoma bearing a whip-like telson, but also preserve two traditional synapomorphies for Araneae: a male pedipalp modified for sperm transfer and well-defined spinnerets resembling those of modern mesothele spiders. This unique character combination resolves C. yingi within a Glade including both Araneae and Uraraneida; however, its exact position relative to these orders is sensitive to different parameters of our phylogenetic analysis. Our new fossil most likely represents the earliest branch of the Araneae, and implies that there was a lineage of tailed spiders that presumably originated in the Palaeozoic and survived at least into the Cretaceous of Southeast Asia.

DOI10.1038/s41559-017-0449-3
Language英语
WOS KeywordAraneae ; Orders
Funding ProjectNational Natural Science Foundation of China[41572010] ; National Natural Science Foundation of China[41622201] ; National Natural Science Foundation of China[41688103] ; Chinese Academy of Sciences[XDPB05] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2011224]
WOS Research AreaEnvironmental Sciences & Ecology ; Evolutionary Biology
WOS SubjectEcology ; Evolutionary Biology
WOS IDWOS:000431612000014
Funding OrganizationNational Natural Science Foundation of China ; Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
PublisherNATURE PUBLISHING GROUP
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/18659
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorWang, Bo (王博)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Beijing, Peoples R China
3.Humboldt Univ, Leibniz Inst Res Evolut & Biodivers, Museum Nat Unde, Berlin, Germany
4.Univ Kansas, Dept Geol, Lawrence, KS 66045 USA
5.Nat Hist Museum, Earth Sci Dept, London, England
6.Univ Manchester, Sch Earth & Environm Sci, Manchester, Lancs, England
7.Hampden Sydney Coll, Dept Biol, Hampden Sydney, VA 23943 USA
8.Friedhofstr 9, Kashofen, Germany
9.Univ Sci & Technol China, Hefei, Anhui, Peoples R China
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Wang, Bo ,Dunlop, Jason A.,Selden, Paul A.,et al. Cretaceous arachnid Chimerarachne yingi gen. et sp nov illuminates spider origins[J]. NATURE ECOLOGY & EVOLUTION,2018,2(4):614-622.
APA Wang, Bo .,Dunlop, Jason A..,Selden, Paul A..,Garwood, Russell J..,Shear, William A..,...&Lei, Xiaojie .(2018).Cretaceous arachnid Chimerarachne yingi gen. et sp nov illuminates spider origins.NATURE ECOLOGY & EVOLUTION,2(4),614-622.
MLA Wang, Bo ,et al."Cretaceous arachnid Chimerarachne yingi gen. et sp nov illuminates spider origins".NATURE ECOLOGY & EVOLUTION 2.4(2018):614-622.
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