Cyrthoceratites Goldfuss, 1832 Dataset GBIF Backbone Taxonomy Rank GENUS Published in Naturh. Atlas, 4, 482. Classification kingdom Animalia phylum Mollusca class Cephalopoda order Nautilida family Nautilidae genus Cyrthoceratites Name Homonyms Cyrthoceratites d'Archiac & de Verneuil, 1842