Eric Walker added Equus to Equidae, and added Equidae to Perissodactyla

Eric Walker added Hyracodontidae, Ceratomorpha and Equidae and Why are ungulates classified by toe parity? : askscience to Perissodactyla, and added Perissodactyla to Mammalia

Eric Walker added Equus ferus to Equus, and added Equus to Equidae