Thelxiope

{{Short description|Extinct genus of arthropods}} {{Automatic taxobox | fossil_range = {{fossilrange|Cambrian Stage 5|Floian}} | image = Thelxiope tangi sp. nov. from the Linyi Lagerstätte.png | image_caption = Fossil and illustration of ''Thelxiope tangi'' | image2 = Thelxiope spinosa reconstruction.png | image2_caption = Life restoration of ''Thelxiope spinosa'' | taxon = Thelxiope | authority = Simonetta & Delle Cave, 1975 | type_species = '''''Thelxiope palaeothalassia''''' | type_species_authority = Simonetta & Delle Cave, 1975 | subdivision_ranks = Other species | subdivision = *'''''Thelxiope holmani''''' Lerosey-Aubril, Skabelund and Ortega-Hernández, 2020 *'''''Thelxiope spinosa''''' (Conway Morris & Robison, 1988) *'''''Thelxiope tangi''''' Sun. et al. 2022 | synonyms = ''Ecnomocaris'' Conway Morris & Robison, 1988 }} [[File:Thelxiope species.jpg|left|thumb|Comparison of 4 ''Thelxiope'' species, ''T. holmani'' (top) ''T. palaeothalassia'' (centre) ''Thelxiope sp.'' from the Fezouata Formation of Morocco (bottom left) ''T. spinosa'' (bottom right)]] '''''Thelxiope''''' is a genus of Cambrian and Ordovician arthropod. Four named species are known, the type species ''T. palaeothalassia'' is known from the Burgess Shale, Canada<ref>{{Cite web|date=2011|title=''Thelxiope palaeothalassia''|work=Burgess Shale Fossil Gallery|publisher=Virtual Museum of Canada|url=http://burgess-shale.rom.on.ca/en/fossil-gallery/view-species.php?id=123|archive-url=https://web.archive.org/20201112025257/http://burgess-shale.rom.on.ca/en/fossil-gallery/view-species.php?id=123|archive-date=2020-11-12}}</ref> ''T. holmani'' is from the Wheeler Shale of Utah, ''Thelxiope tangi'' from the Linyi Lagerstätte of Shandong, China, and ''T. spinosa'', which is known from both the Linyi Lagerstätte and the Wheeler Shale. An indeterminate species is also known from the Ordovician (Floian) Fezouata Formation in Morocco.<ref>{{Cite journal |last1=Sun |first1=Zhixin |last2=Zhao |first2=Fangchen |last3=Zeng |first3=Han |last4=Luo |first4=Cui |last5=Van Iten |first5=Heyo |last6=Zhu |first6=Maoyan |date=2022-07-11 |title=The middle Cambrian Linyi Lagerstätte from the North China Craton: a new window on Cambrian evolutionary fauna |journal=National Science Review |language=en |volume=9 |issue=7 |article-number=nwac069 |doi=10.1093/nsr/nwac069 |issn=2095-5138 |pmc=9273334 |pmid=35832778}}</ref><ref name=":0">{{Cite journal|last1=Lerosey-Aubril|first1=Rudy|last2=Skabelund|first2=Jacob|last3=Ortega-Hernández|first3=Javier|date=2020-04-09|title=Revision of the mollisoniid chelicerate(?) Thelxiope, with a new species from the middle Cambrian Wheeler Formation of Utah|journal=PeerJ|volume=8|article-number=e8879|doi=10.7717/peerj.8879|pmid=32296605|pmc=7151752|issn=2167-8359|doi-access=free}}</ref> It is a member of Mollisoniida, alongside close relatives ''Mollisonia'' and ''Corcorania''. They are suggested to be stem-chelicerates.<ref name=":0" />

==References== {{Reflist}}

Category:Burgess Shale fossils Category:Fezouata Formation fossils Category:Prehistoric arthropod genera Category:Ordovician genus extinctions Category:Prehistoric chelicerates