Coilopoceras

Coilopoceras Temporal range: Turonian–Coniacian PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Ammonoidea
Order:	Ammonitida
Family:	Coilopoceratidae
Genus:	Coilopoceras

Coilopoceras is a compressed, involute, lenticular ammonitid from the Upper Cretaceous with a narrow venter and raggedy ammonitic suture; type of the Coilopceratidae, a family in the Acanthocerataceae of the suborder Ammonitina.

Coilopoceras has an established range from the lower Turonian to the Coniacian in the Upper Cretaceous and may have appeared as low as the upper Cenomanian. Its distribution is widespread, from western North America through northern Africa and Europe to the Middle East.

References

• Arkell et al. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L, Ammonoidea. Geol Soc. of America and Univ Kansas press, 1957. R.C. Moore (ed)