Family
Equidae Gray, 1821
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Infraphylum | Gnathostomata |
| Superclass | Tetrapoda |
| Class | Mammalia |
| Order | Perissodactyla |
| Family | Equidae |
| Genus | Equus |
| Family | Lophiodontidae |
| Rhinocerotidae |