Niceforo Maria’s Oldfield Mouse vs Redvein dock

Thomasomys nicefori compared with Rumex sanguineus

Key Differences

• Niceforo Maria’s Oldfield Mouse is Least Concern while Redvein dock is Critically Endangered.

Taxonomic Classification

Rank	Niceforo Maria’s Oldfield Mouse	Redvein dock
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Rodentia (Rodents)	Caryophyllales (Caryophyllales)
Family	Cricetidae	Polygonaceae
Genus	Thomasomys	Rumex
Species	Thomasomys nicefori	Rumex sanguineus

Conservation Status

Niceforo Maria’s Oldfield Mouse

LC — Least Concern

Redvein dock

CR — Critically Endangered

Physical Characteristics

Attribute	Niceforo Maria’s Oldfield Mouse	Redvein dock
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.

Redvein dock

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate grasslands and steppes, among 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan), Europe (7 countries), North America (Canada, United States), and South America (Chile). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.