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Origin of spiders and their spinning organs illuminated by mid-Cretaceous amber fossils
Huang, Diying (黄迪颖)1; Hormiga, Gustavo2; Cai, Chenyang (蔡晨阳)3; Su, Yitong1; Yin, Zongjun (殷宗军)1; Xia, Fangyuan4; Giribet, Gonzalo5,6
2018-04-01
Source PublicationNATURE ECOLOGY & EVOLUTION
ISSN2397-334X
Volume2Issue:4Pages:623-627
Abstract

Understanding the genealogical relationships among the arachnid orders is an onerous task, but fossils have aided in anchoring some branches of the arachnid tree of life. The discovery of Palaeozoic fossils with characters found in both extant spiders and other arachnids provided evidence for a series of extinctions of what was thought to be a grade, Uraraneida, that led to modern spiders. Here, we report two extraordinarily well-preserved Mesozoic members of Uraraneida with a segmented abdomen, multi-articulate spinnerets with well-defined spigots, modified male palps, spider-like chelicerae and a uropygid-like telson. The new fossils, belonging to the species Chimerarachne yingi, were analysed phylogenetically in a large data matrix of extant and extinct arachnids under a diverse regime of analytical conditions, most of which resulted in placing Uraraneida as the sister Glade of Araneae (spiders). The phylogenetic placement of this arachnid fossil extends the presence of spinnerets and modified palps more basally in the arachnid tree than was previously thought. Ecologically, the new fossil extends the record of Uraraneida 170 million years towards the present, thus showing that uraraneids and spiders co-existed for a large fraction of their evolutionary history.

DOI10.1038/s41559-018-0475-9
Language英语
WOS KeywordCretaceous Burmese Amber ; Opiliones ; Phylogeny ; Tree ; Arachnids ; Myanmar ; Araneae ; Orders ; Genus ; Life
Funding ProjectStrategic Priority Research Program[XDB18000000] ; Chinese Academy of Sciences[XDPB05] ; National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[91514302] ; US National Science Foundation[1457300] ; US National Science Foundation[1457539] ; Wetmore Colles fund
WOS Research AreaEnvironmental Sciences & Ecology ; Evolutionary Biology
WOS SubjectEcology ; Evolutionary Biology
WOS IDWOS:000431612000015
Funding OrganizationStrategic Priority Research Program ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; US National Science Foundation ; Wetmore Colles fund
PublisherNATURE PUBLISHING GROUP
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/18661
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorHuang, Diying (黄迪颖); Giribet, Gonzalo
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Jiangsu, Peoples R China
2.George Washington Univ, Dept Biol Sci, Washington, DC 20052 USA
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Econ Stratig & Palaeogeog, Nanjing, Jiangsu, Peoples R China
4.Lingpoge Amber Museum, Shanghai, Peoples R China
5.Harvard Univ, Museum Comparat Zool, Cambridge, MA 02138 USA
6.Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Huang, Diying ,Hormiga, Gustavo,Cai, Chenyang ,et al. Origin of spiders and their spinning organs illuminated by mid-Cretaceous amber fossils[J]. NATURE ECOLOGY & EVOLUTION,2018,2(4):623-627.
APA Huang, Diying .,Hormiga, Gustavo.,Cai, Chenyang .,Su, Yitong.,Yin, Zongjun .,...&Giribet, Gonzalo.(2018).Origin of spiders and their spinning organs illuminated by mid-Cretaceous amber fossils.NATURE ECOLOGY & EVOLUTION,2(4),623-627.
MLA Huang, Diying ,et al."Origin of spiders and their spinning organs illuminated by mid-Cretaceous amber fossils".NATURE ECOLOGY & EVOLUTION 2.4(2018):623-627.
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