Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Cephalopoda
Subclassis: † Ammonoidea
Ordo: Goniatitida
Subordo: Tornoceratatina
Superfamilia: Tornocerataceae
Familia: Tornoceratidae
Subfamilia: Tornoceratinae
Genera: Crassotornoceras – Domanikoceras – Epitornoceras – Linguatornoceras – Lobotornoceras – Oxytornoceras – Simicheiloceras – Tornoceras
Name
Tornoceratinae Arthaber, 1911
References
The Paleobiology Database Accessed 11/23/08
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.
References
The Paleobiology Database accessed on 10/01/07
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