? diptycha M'Coy, 1867 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Mollusca class Cephalopoda order Belemnitida family Dimitobelidae Name Homonyms ? diptycha Hartmeyer, 1919 ? diptycha M'Coy, 1867 ? diptycha Bose, 1898 ? diptycha Oppel, 1856