Order Goniatitida Rank Subfamily | Suborder Goniatitina | |
Pericyclinae is one of two subfamilies of the Pericyclidae family. 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
Pericyclinae Wikipedia(Text) CC BY-SA