Prototomus secundarius (Cope, 1875) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia family Hyaenodontidae genus Prototomus species Prototomus secundarius Name Synonyms Sinopa secundaria (Cope, 1875) Stypolophus secundarius (Cope, 1875) Homonyms Prototomus secundarius (Cope, 1875)