Gray-bellied Rice Rat vs Niceforo Maria’s Oldfield Mouse

Nephelomys moerex compared with Thomasomys nicefori

Key Differences

• Gray-bellied Rice Rat is Extinct while Niceforo Maria’s Oldfield Mouse is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Rice Rat	Niceforo Maria’s Oldfield Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Mammalia (mamíferos)	Mammalia (mamíferos)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family same	Cricetidae	Cricetidae
Genus	Nephelomys	Thomasomys
Species	Nephelomys moerex	Thomasomys nicefori

Evolutionary Relationship

Gray-bellied Rice Rat and Niceforo Maria’s Oldfield Mouse share a common ancestor at the Family level: Cricetidae.

Conservation Status

Gray-bellied Rice Rat

EX — Extinct

Niceforo Maria’s Oldfield Mouse

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Rice Rat	Niceforo Maria’s Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-bellied Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.

Niceforo Maria’s Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.