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About: Campbelloceras     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : umbel-rc:Mollusk, within Data Space : dbpedia.org associated with source document(s)

Type: molluscayago:WikicatCephalopodsyago:Animal100015388yago:Cephalopod101968315yago:Invertebrate101905661yago:LivingThing100004258yago:Mollusk101940736yago:Object100002684yago:Organism100004475yago:PhysicalEntity100001930yago:Whole100003553umbel-rc:Mollusk New Facet based on Instances of this Class

Campbelloceras is a tarphyceratid nautiloid known from the Lower Ordovician, Upper Canadian Epoch of North America, where it is widespread. Campbelloceras was named by Ulrich and Foerste in 1936. The shell of Campbelloceras has a circular whorl section, only slightly impressed, and a siphuncle that is close to the venter in all growth stages. Campbelloceras differs from Tarphyceras in that the rate of expansion is greater, the siphuncle is proportionally largers, and an impression is shallower.