Central Andes Oldfield Mouse vs Ecuadorian Cotton Rat

Thomasomys contradictus compared with Sigmodon inopinatus

Key Differences

• Central Andes Oldfield Mouse is Data Deficient while Ecuadorian Cotton Rat is Vulnerable.

Taxonomic Classification

Rank	Central Andes Oldfield Mouse	Ecuadorian Cotton Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family same	Cricetidae	Cricetidae
Genus	Thomasomys	Sigmodon
Species	Thomasomys contradictus	Sigmodon inopinatus

Evolutionary Relationship

Central Andes Oldfield Mouse and Ecuadorian Cotton Rat share a common ancestor at the Family level: Cricetidae.

Conservation Status

Central Andes Oldfield Mouse

DD — Data Deficient

Ecuadorian Cotton Rat

VU — Vulnerable

Physical Characteristics

Attribute	Central Andes Oldfield Mouse	Ecuadorian Cotton Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Central Andes Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Ecuadorian Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Central Andes Oldfield Mouse

The Central Andes Oldfield Mouse (Thomasomys contradictus) is a species in the genus Thomasomys. It is currently classified as Data Deficient on the IUCN Red List. Found in Colombia.