Niceforo Maria’s Oldfield Mouse vs Pool Frog

Thomasomys nicefori compared with Pelophylax lessonae

Key Differences

• Niceforo Maria’s Oldfield Mouse is Least Concern while Pool Frog is Critically Endangered.

Taxonomic Classification

Rank	Niceforo Maria’s Oldfield Mouse	Pool Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Anura (Frogs & Toads)
Family	Cricetidae	Ranidae
Genus	Thomasomys	Pelophylax
Species	Thomasomys nicefori	Pelophylax lessonae

Evolutionary Relationship

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

Conservation Status

Niceforo Maria’s Oldfield Mouse

LC — Least Concern

Pool Frog

CR — Critically Endangered

Physical Characteristics

Attribute	Niceforo Maria’s Oldfield Mouse	Pool Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Niceforo Maria’s Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Pool Frog

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (8 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Pool Frog

Pool Frog (Pelophylax lessonae) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.