Nannippus aztecus Mooser, 1968 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia order Perissodactyla family Equidae genus Nannippus species Nannippus aztecus Name Synonyms Hipparion minor (Sellards, 1916) Hipparion minus (Sellards, 1916) Hipparion venustum (Leidy, 1853) Hippotherium venustum (Leidy, 1853) Nannippus minor (Sellards, 1916) Nannippus venustus (Leidy, 1853) Neohipparion venustum (Leidy, 1853) Homonyms Nannippus aztecus Mooser, 1968