*** Welcome to piglix ***

Aipoceratidae

Aipoceratidae
Temporal range: Carboniferous
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Nautiloidea
Order: Nautilida
Superfamily: Aipocerataceae
Family: Aipoceratidae
Hyatt 1883

The Aipoceratidae are a small family of Carboniferous nautilids which have smooth shells and loosely coiled to faintly impressed whorls and in which the aperture may be modified at maturity. The Aipoceratidae include the Lower Carboniferous Aipoceras and , and Librovitschiceras from the Upper Carboniferous. The Solenochilidae are closely related.


...
Wikipedia

...