Eutrephoceras hacobjani Shimansky, 1974 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda order Nautilida family Nautilidae genus Eutrephoceras species Eutrephoceras hacobjani Name Homonyms Eutrephoceras hacobjani Shimansky, 1974