Suvarna Garge (Editor)

Carinonautilus

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Kingdom  Animalia
Class  Cephalopoda
Order  Nautilida
Rank  Genus
Phylum  Mollusca
Subclass  Nautiloidea
Superfamily  Nautilaceae
Similar  Hercoglossidae, Nautilaceae, Eutrephoceras, Cenoceras, Allonautilus

Carinonautilus is a genus of extinct, Middle Cretaceous nautilid with a very involute, compressed shell in which the whorl section is higher than wide, umbilicus is small and shallow, or flanks converge on a narrow venter that has a rounded keel. A furrow on either side marks the ventro-lateral shoulder.

The genus was erected by Spengler in 1910 on the basis of the holotype, found in Middle Cretaceous strata from India.

References

Carinonautilus Wikipedia


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