? eximia Prinz, 1904 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Mollusca class Cephalopoda family Hammatoceratidae genus Hammatoceras species Hammatoceras eximia Name Homonyms ? eximia Hagen, 1862 ? eximia Prinz, 1904 ? eximia Yü, 1979 ? eximia Perner, 1907 ? eximia Smith, 1861 ? eximia Sowerby, 1845 ? eximia Eichwald, 1845 ? eximia Hall, 1843 ? eximia Kovalev, 1994 ? eximia Yochelson, 1960 ? eximia Niedbala, 1982 ? eximia Boissonneau, 1840 ? eximia Leidy, 1873