Ammonites polymorphus d'Orbigny, 1846 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda family Morphoceratidae genus Morphoceras species Morphoceras multiforme Name Homonyms Ammonites polymorphus Quenstedt, 1845 Ammonites polymorphus d'Orbigny, 1846