Order
Rodentia Bowdich, 1821
List of species
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Organism group | Gnathostomata |
| Superclass | Tetrapoda |
| Class | Mammalia |
| Order | Artiodactyla |
| Carnivora | |
| Perissodactyla | |
| Primates | |
| Proboscidea | |
| Rodentia | |
| Family | Castoridae |
| Muridae |