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: Falcitornoceratinae
Genera: Falcitornoceras – Gundolficeras – Kourazouceras – Phoenixites
Name
Falcitornoceratinae Becker, 1993
References
The Paleobiology Database Accessed 11/23/08
Falcitornoceratinae is one of three subfamilies of the Tornoceratidae family, a member of the Goniatitida order. Shells produced are extremely involute and have no umbilicus. Young and intermediate whorls have ventrolateral grooves. The adventitious lobe, which develops ontogenetically between the external, or ventral, and lateral lobes, is widely rounded. Tornoceratids in which the Falcitornoceratinae are included are involute, subdiscoidal, with sutures that form 6 to 10 lobes.
References
Falcitornoceratinae in GONIAT 6/9/12
Falcitornoceratinae in Paleobiology Database, 6/9/12
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