Iocrinus

{{Short description|Extinct genus of crinoids}} {{more citations needed|date=July 2023}} {{Italic title}} {{Taxobox | name = '''''Iocrinus''''' | fossil_range = | image = Iocrinus subcrassus, crinoid, Late Ordovician, McMillan Formation, Butler County, Ohio, USA - Houston Museum of Natural Science - DSC01499.JPG | image_caption = ''Iocrinus subcrassus'' | regnum = Animalia | phylum = Echinodermata | classis = Crinoidea | ordo = Disparida | familia = Iocrinidae | genus = '''''Iocrinus''''' | genus_authority = Hall, 1866 | subdivision_ranks = Species | subdivision = |}}

'''''Iocrinus''''' is an extinct genus of crinoid<ref>{{Cite web |date=2013-12-07 |title=Iocrinus |url=https://www.ordovicianatlas.org/atlas/echinodermata/crinoidea/disparida/iocrinidae/iocrinus/ |access-date=2023-06-26 |website=Atlas of Ordovician Life |language=en-US}}</ref> (sea lilies and feather stars). It is an early form of crinoid, from the Ordovician rock of North America, England, and Gilwern Hill, Powys in Wales.

== Selected species == * ''Iocrinus brithdirensis'' * ''Iocrinus crassus'' * ''Iocrinus pauli'' * ''Iocrinus shelvensis'' * ''Iocrinus similis'' * ''Iocrinus subcrassus'' * ''Iocrinus trentonensis'' * ''Iocrinus whitteryi''

== References == {{Commons category}} * [https://archive.today/20130412084130/http://museumu03.museumwww.naturkundemuseum-berlin.de/cgi-bin/bridge.pl?a=checkTaxonInfo&taxon_no=31940&is_real_user=1 Paleobiology Database entry] * [http://palaeontology.palass-pubs.org/pdf/Vol%2032/Pages%20313-323.pdf ''Iocrinus'' in the Ordovician of England and Wales]{{Dead link|date=January 2020 |bot=InternetArchiveBot |fix-attempted=yes }} * Stuart M. Kelly, ''Functional Morphology and Evolution of Iocrinus: An Ordovician Disparid Inadunate Crinoid'', Indiana University, 1978. {{Reflist}}

Category:Iocrinidae Category:Ordovician crinoids Category:Ordovician echinoderms of Europe Category:Ordovician echinoderms of North America Category:Paleozoic life of Ontario Category:Verulam Formation