Aipocerataceae The Aipoceratoidea are a superfamily within the order Nautilida characterized by rapidly expanding, smooth to ribbed, cyrtoconic to coiled shells with rounded or sometimes dorsally flattened or impressed whorls, nearly straight sutures, and a ventral and marginal siphuncle.

The Aipoceratidae are represented by the loosely coiled, compressed and gyroconic Aipoceras from the Lower Carboniferous (Mississippian) of Europe and North America; the Solenochilidae are represented by the tightly coiled cosmopolitan Solenochilis from the Upper Carboniferous (Pennsylvanian) to the Lower Permian, with spines projecting straight out laterally from the umbilical region; and the Scyphoceratidae are represented by Scyphoceras from the Lower Permian of the Ural Mountains, which has a ribbed shell and a relatively small and sharply curved phragmocone.

280) shows a tentative connection to the Rutoceratidae in the Devonian.

Flower[2] also shows a tentative connection but from the equivalent Solenochilida to the Barrndeocerida.

Shimansky, though, shows a direct connection from the Solenocheilaceae to the Rutoceratidae.