Involuticeras

{{Short description|Genus of molluscs (fossil)}}

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{{Taxobox

| fossil_range = {{fossil range|Kimmeridgian|ref={{cite journal|last=Sepkoski |first=Jack |title=A compendium of fossil marine animal genera (Cephalopoda entry) | journal=Bulletins of American Paleontology |volume=363 |pages=1–560 | year=2002 | url=http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=231&rank=class |accessdate=2017-10-18 |url-status=dead | archiveurl=https://web.archive.org/web/20080507014300/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=231&rank=class | archivedate=2008-05-07 }}}}

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| regnum = Animalia

| phylum = Mollusca

| classis = Cephalopoda

| subclassis = Ammonoidea

| ordo = Ammonitida

| superfamilia = Perisphinctoidea

| familia = Perisphinctidae

| genus = Involuticeras {{cite web | title= Paleobiology Database - Involuticeras | year = | url = https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=15042| access-date = 2017-10-19 }}

| genus_authority = Quenstedt, 1846 }}

Involuticeras is a perisphinctoid ammonite belonging to the Aulacostephanininae from the Upper Jurassic of Europe and possibly Mexico. The shell is involute, moderately compressed, with a rounded and ribbed venter. The genus is similar in general form to Aulacostephanus and Epicephalites.