Arretotherium fricki Macdonald & Schultz, 1956 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia order Artiodactyla family Anthracotheriidae genus Arretotherium species Arretotherium fricki Name Homonyms Arretotherium fricki Macdonald & Schultz, 1956