Tornoceratinae

Tornoceratinae is one of three subfamilies of the Tornoceratidae family, a member of the Goniatitida order. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish, and more distantly to the nautiloids.

Other articles related to "tornoceratinae":

Tornoceratidae - Taxonomy
... to include three subfamilies, the Tornoceratinae, Aulatornoceratinae, and Falcitornoceratinae ... Tornoceratinae is based on the genus Tornoceras described by Alpheus Hyatt in 1884 ... The Tornoceratinae form the root stock of the tornoceratids and are derived from Anarcestida ...