Eric Walker added Paraceratherium to Indricotheriinae, and added Indricotheriinae to Hyracodontidae

Eric Walker added Indricotheriinae to Hyracodontidae, and added Hyracodontidae 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