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dc.contributor.authorHuang, Diying
dc.contributor.authorHormiga, Gustavo
dc.contributor.authorCal, Chenyang
dc.contributor.authorSu, Yitong
dc.contributor.authorYin, Zongjun
dc.contributor.authorXia, Fangyuan
dc.contributor.authorGiribet, Gonzalo
dc.date.accessioned2019-07-23T22:07:38Z
dc.date.issued2018-02-05
dc.identifier.citationHuang, Diying, Gustavo Hormiga, Chenyang Cai, Yitong Su, Zongjun Yin, Fangyuan Xia, and Gonzalo Giribet. 2018. Origin of Spiders and Their Spinning Organs Illuminated by Mid-Cretaceous Amber Fossils. Nature Ecology and Evolution 2: 623-627.en_US
dc.identifier.issn2397-334Xen_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:40992631*
dc.description.abstractUnderstanding 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 clade 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.en_US
dc.language.isoen_USen_US
dc.publisherSpringer Natureen_US
dash.licenseOAP
dc.titleOrigin of Spiders and Their Spinning Organs Illuminated by Mid-Cretaceous Amber Fossilsen_US
dc.typeJournal Articleen_US
dc.description.versionAccepted Manuscripten_US
dc.relation.journalNature Ecology and Evolutionen_US
dash.depositing.authorGiribet, Gonzalo
dc.date.available2019-07-23T22:07:38Z
dash.workflow.commentsFAR2017en_US
dash.funder.nameChinese Academy of Sciencesen_US
dash.funder.nameNational Natural Science Foundation of Chinaen_US
dash.funder.nameNational Science Foundationen_US
dash.funder.awardXDB18000000en_US
dash.funder.awardXDPB05en_US
dash.funder.award41688103en_US
dash.funder.award91514302en_US
dash.funder.award1457300en_US
dash.funder.award1457539en_US
dc.identifier.doi10.1038/s41559-018-0475-9
dc.source.journalNat Ecol Evol
dash.source.volume2;4
dash.source.page623-627
dash.contributor.affiliatedHormiga, Gustavo
dash.contributor.affiliatedGiribet, Gonzalo


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