Unicolored Oldfield mouse

Unicolored Oldfield mouse
Holotype skull.
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Cricetidae
Subfamily: Sigmodontinae
Genus: Thomasomys
Species:
T. monochromos
Binomial name
Thomasomys monochromos
Bangs, 1900

The unicolored Oldfield mouse (Thomasomys monochromos) is a species of rodent in the family Cricetidae. It is found only in Colombia.