Order
Perissodactyla Owen, 1848
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Organism group | Gnathostomata |
| Superclass | Tetrapoda |
| Class | Mammalia |
| Order | Artiodactyla |
| Carnivora | |
| Perissodactyla | |
| Family | Equidae |
| Lophiodontidae | |
| Rhinocerotidae | |
| Order | Primates |
| Proboscidea | |
| Rodentia |