Rank Genus | Superfamily Ancylocerataceae | |
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Similar Ammonites, Ancyloceratina, Olcostephanus, Pseudothurmannia, Emericiceras | ||
Crioceratites is an ammonite genus from the Early Cretaceous belonging to the Ancylocerataceae.
Contents
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
Crioceritites 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
Crioceratities fossils have been found in Lower Cretaceous Hauterevian-Barremanian, sediments in Europe, Africa, Asia, North America and South America.
