''Caloceras'' is an extinct genus of cephalopod belonging to the
ammonite
Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) ...
subclass.
Distribution
Jurassic of Argentina, Austria, Canada, the United Kingdom
References
Psiloceratidae
Ammonitida genera
Jurassic ammonites of North America
Hettangian life
{{Ammonitina-stub