Kingdom Animalia Class Cephalopoda Order †Ammonitida | Phylum Mollusca Subclass †Ammonoidea Rank Subfamily | |
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Similar Acanthoceratoidea, Calycoceras, Acanthoceras, Mantelliceras, Mammites | ||
The Acanthoceratinae comprise a subfamily of ammonoid cephalopods that lived during the Late Cretaceous from the latter early Cenomanian to the late Turonian
Contents
Shells are evolute, tuberculate and ribbed, with subquadrate to squarish whorl section wherein tubercles typically dominate over ribs. Derivation is from the Mantellicertinae in the early Cenomanian. Gave rise through Neocardioceras to the Mammitinae.
Genera
The following genera are included in the Acanthoceratinae according to various sources as indicated.
Distribution
Fossils of species within the Acanthoceratinae have been found in Upper Cretaceous sediments in Angola, Antarctica, Australia, Brazil, Canada, Denmark, Egypt, France, Germany, Japan, Jordan, Madagascar, Mexico, Nigeria, Oman, Peru, Russia, Switzerland, United Kingdom, United States and Venezuela.