Antepithecus brachystephanus Ameghino, 1901 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia family Interatheriidae genus Antepithecus species Antepithecus brachystephanus Name Synonyms Adpithecus reduncus Ameghino, 1902 Antepithecus interrasus Ameghino, 1904 Gonopithecus trigonodontoides Ameghino, 1904 Infrapithecus cinctus Ameghino, 1901 Pseudadiantus imperfectus Ameghino, 1901 Pseudadiantus secans Ameghino, 1901 Homonyms Antepithecus brachystephanus Ameghino, 1901