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- Campbelloceras abstract "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.Campbelloceras may have given rise to the barrandeocerid Plectoceras (Plectoceratidae) through simplification of the connecting rings, and to Tarphyceras through tighter coiling, development of a deeper impression, and reduction in the size of the siphuncle. Campbelloceras may be conceivably derived from Estonioceras (Estonioceratidae). The cross section of Campbelloceras and that of the outer whorl of Estonioceras are similar, except for Campbelloceras being slightly impressed. Both have proportionally large siphuncles, near the venter.".
- Campbelloceras class Cephalopod.
- Campbelloceras class Nautiloid.
- Campbelloceras family Tarphyceratidae.
- Campbelloceras kingdom Animal.
- Campbelloceras order Tarphycerida.
- Campbelloceras phylum Mollusca.
- Campbelloceras wikiPageID "18412789".
- Campbelloceras wikiPageRevisionID "466745713".
- Campbelloceras classis "Cephalopoda".
- Campbelloceras familia Tarphyceratidae.
- Campbelloceras genus "Campbelloceras".
- Campbelloceras genusAuthority "Ulrich and Foerste, 1936".
- Campbelloceras hasPhotoCollection Campbelloceras.
- Campbelloceras ordo Tarphycerida.
- Campbelloceras phylum Mollusca.
- Campbelloceras regnum Animal.
- Campbelloceras subclassis Nautiloid.
- Campbelloceras subject Category:Cephalopods.
- Campbelloceras subject Category:Tarphycerida.
- Campbelloceras type Animal100015388.
- Campbelloceras type Cephalopod101968315.
- Campbelloceras type Cephalopods.
- Campbelloceras type Invertebrate101905661.
- Campbelloceras type LivingThing100004258.
- Campbelloceras type Mollusk101940736.
- Campbelloceras type Object100002684.
- Campbelloceras type Organism100004475.
- Campbelloceras type PhysicalEntity100001930.
- Campbelloceras type Whole100003553.
- Campbelloceras type Animal.
- Campbelloceras type Eukaryote.
- Campbelloceras type Mollusca.
- Campbelloceras type Species.
- Campbelloceras type Mollusk.
- Campbelloceras type Organism.
- Campbelloceras comment "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 label "Campbelloceras".
- Campbelloceras sameAs m.04d_552.
- Campbelloceras sameAs Q16975396.
- Campbelloceras sameAs Q16975396.
- Campbelloceras sameAs Campbelloceras.
- Campbelloceras wasDerivedFrom Campbelloceras?oldid=466745713.
- Campbelloceras isPrimaryTopicOf Campbelloceras.