Acanthoceras

Systematic Paleontology

Class: Cephalopoda

Subclass: Ammonoidea

Order: Ammonitida

Family: Acanthoceratidae

Subfamily: Acanthoceratinae

Genus: Acanthoceras

Acanthoceras is the type genus for the Ammonitida family Acanthoceratidae which lived during the Cenomanian stage of the Cretaceous period.

The shell is evolute, all whorls exposed. Ribbing is strong, tubercles distinct. The whorl section may be round or squarish.

Romaniceras, also assigned to the Acanthoceratinae, is similar in overall form.