? diptycha Oppel, 1856 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Brachiopoda class Rhynchonellata order Terebratulida family Postepithyrididae Name Homonyms ? diptycha Hartmeyer, 1919 ? diptycha M'Coy, 1867 ? diptycha Bose, 1898 ? diptycha Oppel, 1856