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Nautilus fossils

Members of the cephalopod super-family Nautilaceae are commonly called "Nautilus."
Present day nautiluses are the only living members of the subclass Nautiloidea.
Nautiluses belong to an ancient cephalopod family that has survived several severe extinction events that destroyed much other sea life.  A possible reason for the longevity of the nautilus clan is an ability to enter a type of "hibernation" life mode that can bridge long periods of poor environmental conditions.
There is more information in our page on
The Nautilus

The Cymatoceras nautilus specimens offered here are from Madagascar.  They date from the mid-Cretaceous Albian Age The specimens were prepared in Madagascar by local native artisans.

Nautilidea found in Madagascar.
Cymatoceras species Other Nautilaceae
C. sakalavum   Eutrephoceras desertum - desertorum?
C. Kayei - kayeanus?     Eutrephoceras sublaevigatum
C. crebricostatum Hercoglossa danica - danicus? var. indica
C. andranofotsyense Hercoglossa madagascariense
C. madagascariense Paracymatoceras rota
C. formosus  Paracenoceras sp.
C. huxleyanus