Heptacodon curtus (Marsh, 1894) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia order Artiodactyla family Anthracotheriidae genus Heptacodon species Heptacodon curtus Name Synonyms Anthracotherium curtum (Marsh, 1894) Anthracotherium karense (Osborn & Wortman, 1894) Heptacodon karensis (Osborn & Wortman, 1894) Octacodon karense (Osborn & Wortman, 1894) Octacodon valens Marsh, 1894 Homonyms Heptacodon curtus (Marsh, 1894)