? boreale Cope, 1880 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Chordata class Mammalia order Perissodactyla family Brontotheriidae Name Homonyms ? boreale Fr. ? boreale Ellis & Holw. ? boreale Sweet, 1958 ? boreale Heer, 1870 ? boreale Cope, 1880