Simoceratinae

The Simoceratinae is a subfamily in the Aspidoceratidae, a family of ammonites in the Perisphinctaceae, that lived during most of the Late Jurassic, especially in the Pacific and Tethyan realms. Early genera more closely resemble Perisphictidae and have constricted apertures. Later, more aberrant forms are unconstricted and develop grooved or concave venters.

Simoceratinae Temporal range: Upper Jurassic PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Family:	†Aspidoceratidae
Subfamily:	†Simoceratinae Spath, 1924
Genera
Aulasimoceras Baeticoceras Benacoceras Hemisimoceras Lytogyroceras Pseudoclambites Pseudosimoceras Simoceras Virgatosimoceras

References

• Arkell, et al., 1957. Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L. (Ammonoidea). Geol Soc of America and Univ Kansas Press.