Euphylloceras thetys (d'Orbigny, 1841) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda order Phylloceratida family Phylloceratidae genus Phylloceras species Phylloceras thetys Name Homonyms Euphylloceras thetys (d'Orbigny, 1841)