| Microtheriomys Temporal range: | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Castoridae |
| Subfamily: | † Agnotocastorinae |
| Tribe: | † Anchitheriomyini |
| Genus: | † Microtheriomys |
| Species: | †M. brevirhinus |
| Binomial name | |
| †Microtheriomys brevirhinus Korth & Samuels, 2015 | |
Microtheriomys is an extinct genus of anchitheriomyine castorid that lived during the Arikareean.
Microtheriomys brevirhinus is known from the John Day Formation of Oregon. [1]