Galapagos Oryzomys vs Niceforo Maria’s Oldfield Mouse

Aegialomys galapagoensis compared with Thomasomys nicefori

Key Differences

• Galapagos Oryzomys is Vulnerable while Niceforo Maria’s Oldfield Mouse is Least Concern.

Taxonomic Classification

Rank	Galapagos Oryzomys	Niceforo Maria’s Oldfield Mouse
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mamalia)	Mammalia (mamalia)
Order same	Rodentia (hewan pengerat)	Rodentia (hewan pengerat)
Family same	Cricetidae	Cricetidae
Genus	Aegialomys	Thomasomys
Species	Aegialomys galapagoensis	Thomasomys nicefori

Evolutionary Relationship

Galapagos Oryzomys and Niceforo Maria’s Oldfield Mouse share a common ancestor at the Family level: Cricetidae.

Conservation Status

Galapagos Oryzomys

VU — Vulnerable

Niceforo Maria’s Oldfield Mouse

LC — Least Concern

Physical Characteristics

Attribute	Galapagos Oryzomys	Niceforo Maria’s Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Galapagos Oryzomys

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.

Niceforo Maria’s Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.