Eric Walker added Rhinocerotoidea to Ceratomorpha, and added Ceratomorpha to Perissodactyla

Eric Walker added Rhinocerotidae, Ceratotherium and Coelodonta and Rhinocerotoidea - Wikipedia to Rhinocerotoidea, and added Rhinocerotoidea to Ceratomorpha

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