Thryptacodon antiquus Matthew & Granger, 1915 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia family Arctocyonidae genus Thryptacodon species Thryptacodon antiquus Name Synonyms Thryptacodon loisi Kelley & Wood, 1954 Thryptacodon olseni Matthew & Granger, 1915 Homonyms Thryptacodon antiquus Matthew & Granger, 1915