Eutrephoceras sublaevigatum (d'Orbigny, 1850) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda order Nautilida family Nautilidae genus Eutrephoceras species Nautilus sublaevigatus Name Homonyms Eutrephoceras sublaevigatum (d'Orbigny, 1850)