Caumontisphinctes
automatic taxobox
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{{Short description|Genus of molluscs (fossil)}} |
{{Short description|Genus of molluscs (fossil)}} |
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{{Automatic taxobox |
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{{Taxobox |
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|regnum = [[Animalia]] |
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|authority = Buckman, 1920 |
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|phylum = [[Mollusca]] |
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|classis = [[Cephalopoda]] |
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|subclassis = [[Ammonoidea]] |
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|ordo = [[Ammonitida]] |
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|superfamilia = [[Perkinsonatoidea]] |
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|familia = [[Perkinsoniidae]] |
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|genus = '''''Caumontisphinctes''''' |
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'''''Caumontisphinctes''''' is an [[ammonoidea|ammonoid]] genus from the [[ammonitida|ammonitid]] superfamily |
'''''Caumontisphinctes''''' is an [[ammonoidea|ammonoid]] genus from the [[ammonitida|ammonitid]] superfamily Parkinsonatoidea that lived during the Bajocian stage of the [[Middle Jurassic]].{{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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''Chaumontisphinctis'', named by Buckman, is like the genus ''Perisphinctis'' in being compressed with an ovoid whorl section but perkinsoniid in having sharp ribbing, a smooth or grooved venter, and tubercles commonly developed at bifurcation points on the ribs and at the ventral edge or on the venter. |
''Chaumontisphinctis'', named by Buckman, is like the genus ''Perisphinctis'' in being compressed with an ovoid whorl section but perkinsoniid in having sharp ribbing, a smooth or grooved venter, and tubercles commonly developed at bifurcation points on the ribs and at the ventral edge or on the venter. |
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