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 (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order same	Rodentia (啮齿目)	Rodentia (啮齿目)
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.