| Monosaulax | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Castoridae |
| Tribe: | †Castoroidini |
| Genus: |
†Monosaulax Stirton, 1935 |
Monosaulax is an extinct genus of beaver-grouped rodents. It is sometimes treated as a synonym of Eucastor (McKenna and Bell, 1997).