Carriker’s Speckled Tree-rat vs Niceforo Maria’s Oldfield Mouse

Pattonomys carrikeri compared with Thomasomys nicefori

Key Differences

• Carriker’s Speckled Tree-rat is Data Deficient while Niceforo Maria’s Oldfield Mouse is Least Concern.

Taxonomic Classification

Rank	Carriker’s Speckled Tree-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	Echimyidae	Cricetidae
Genus	Pattonomys	Thomasomys
Species	Pattonomys carrikeri	Thomasomys nicefori

Evolutionary Relationship

Carriker’s Speckled Tree-rat and Niceforo Maria’s Oldfield Mouse share a common ancestor at the Order level: Rodentia. (啮齿目)

Conservation Status

Carriker’s Speckled Tree-rat

DD — Data Deficient

Niceforo Maria’s Oldfield Mouse

LC — Least Concern

Physical Characteristics

Attribute	Carriker’s Speckled Tree-rat	Niceforo Maria’s Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Carriker’s Speckled Tree-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.

Niceforo Maria’s Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Carriker’s Speckled Tree-rat

The Carriker’s Speckled Tree-rat (Pattonomys carrikeri) is a species in the genus Pattonomys. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.