Biology:Falcitornoceratinae

Short description: Extinct subfamily of molluscs

Falcitornoceratinae Temporal range: 376.1–360.7 Ma PreЄ Є O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Goniatitida
Family:	†Tornoceratidae
Subfamily:	†Falcitornoceratinae Becker, 1993
Genera
Falcitornoceras Gundolficeras Kourazouceras Phoenixites

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

Wikidata ☰ Q5431697 entry