Crioceratites

Crioceratites is an ammonite genus from the Early Cretaceous belonging to the Ancyloceratoidea.
"Crioceratites" was formerly included in the Ancyloceratidae, in the subfamily Crioceratinae which was subsequently elevated in rank to the family Crioceratidae. "Crioceras" and "Toxoceras" d'Orbigny and possibly "Emericiceras" Sarka 1954 are junior synonyms.
Species.
Species within the genus "Crioceratites" include:
Description.
"Crioceratites" is coiled in an open, normally equiangular spiral with an oval or subquadrate whorl section. The surface is banded by fine, dense, rounded ribbing sectioned by periodically spaced thick and often spinose ribs.
Distribution.
"Crioceratites" fossils have been found in Lower Cretaceous Valanginian-Barremanian, sediments in Europe, Africa, Asia, North America and South America; Argentina, Chile and Colombia (Paja Formation).