McDiarmid Thorius vs Niceforo Maria’s Oldfield Mouse

Thorius munificus compared with Thomasomys nicefori

Key Differences

• McDiarmid Thorius is Critically Endangered while Niceforo Maria’s Oldfield Mouse is Least Concern.

Taxonomic Classification

Rank	McDiarmid Thorius	Niceforo Maria’s Oldfield Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Caudata (Caudata)	Rodentia (Rodents)
Family	Plethodontidae	Cricetidae
Genus	Thorius	Thomasomys
Species	Thorius munificus	Thomasomys nicefori

Evolutionary Relationship

McDiarmid Thorius and Niceforo Maria’s Oldfield Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

McDiarmid Thorius

CR — Critically Endangered

Niceforo Maria’s Oldfield Mouse

LC — Least Concern

Physical Characteristics

Attribute	McDiarmid Thorius	Niceforo Maria’s Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

McDiarmid Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Currently classified as Critically Endangered 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.