? integer Matthew, 1924 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Chordata class Mammalia order Perissodactyla family Equidae Name Homonyms ? integer Fabricius, 1793 ? integer Bukry, 1969 ? integer Koken, 1885 ? integer Matthew, 1924 ? integer Beyrich, 1845 ? integer Hess & Gale, 2010 ? integer Cope, 1877 ? integer Schwarzhans, 1980