Solenochilidae is a small family of Carboniferous and Early Permian nautilids, similar and related to the

Aipoceratidae 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 '' ...

that comprises genera with whorls in contact and which develop laterally projecting umbilical spines by maturity. The included genera ''

Solenochilus ''Solenochilus'', type genus of the Solenochilidae is an extinct cosmopotilian nautilid from the Lower Pennsylvanian to the Lower Permian with a rapidly expanding, coiled globular shell with few whorls, from which prominent spines extend later ...

'' and '' Acanthonautilus'' are quite similar in external form but differ in their siphuncles. Those of ''Solenochilus'' have more strongly inflated siphuncle segments and more tightly curved septal necks.

References

* Bernhard Kummel, 1964. Nautiloidea - Nautilida;

Treatise on Invertebrate Paleontology The ''Treatise on Invertebrate Paleontology,'' published from 1953–2007 by the Geological Society of America and the University of Kansas, then 2009–present by the University of Kansas Paleontological Institute, is a definitive multi-authore ...

, Part K. Geological Society of America and University of Kansas Press. Prehistoric nautiloid families Mississippian first appearances Cisuralian extinctions {{paleo-nautiloidea-stub