Equus complicatus (Leidy, 1858) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia order Perissodactyla family Equidae genus Equus species Equus complicatus Name Synonyms Equus americanus Leidy, 1847 Equus eous Cope, 1895 Onager complicatus (Leidy, 1858) Homonyms Equus complicatus (Leidy, 1858)