Order Goniatitida Rank Family | Suborder Goniatitina | |
Perrinitidae is one of three families of the Goniatitina suborder. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish, and more distantly to the nautiloids.
References
Perrinitidae Wikipedia(Text) CC BY-SA