| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Class: | Mammalia |
| Order: | Rodentia |
| Suborder: | Histricomorpha |
| Family: | Chinchillidae |
- Genus
- species – Common Name
- Chinchilla
- brevicaudata, laniger – Chinchilla
- Lagidium
- peruanum, viscacis – Mountain Viscacha
- Lagostromus
- maximus – Plains Viscacha
