Central Andes Oldfield Mouse vs Coimbra-Filho’s Titi

Thomasomys contradictus compared with Callicebus coimbrai

Key Differences

• Central Andes Oldfield Mouse is Data Deficient while Coimbra-Filho’s Titi is Endangered.

Taxonomic Classification

Rank	Central Andes Oldfield Mouse	Coimbra-Filho’s Titi
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class same	Mammalia (포유류)	Mammalia (포유류)
Order	Rodentia (설치류)	Primates (영장목)
Family	Cricetidae	Pitheciidae
Genus	Thomasomys	Callicebus
Species	Thomasomys contradictus	Callicebus coimbrai

Evolutionary Relationship

Central Andes Oldfield Mouse and Coimbra-Filho’s Titi share a common ancestor at the Class level: Mammalia. (포유류)

Conservation Status

Central Andes Oldfield Mouse

DD — Data Deficient

Coimbra-Filho’s Titi

EN — Endangered

Physical Characteristics

Attribute	Central Andes Oldfield Mouse	Coimbra-Filho’s Titi
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Central Andes Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Coimbra-Filho’s Titi

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Central Andes Oldfield Mouse

The Central Andes Oldfield Mouse (Thomasomys contradictus) is a species in the genus Thomasomys. It is currently classified as Data Deficient on the IUCN Red List. Found in Colombia.

Coimbra-Filho’s Titi

The Coimbra-Filho's Titi (Callicebus coimbrai), also known as Coimbra-Filho's Titi Monkey, is a small New World monkey in the family Pitheciidae, named in honour of the Brazilian primatologist Adelmar F. Coimbra-Filho. This titi monkey is endemic to the Atlantic Forest of northeastern Brazil, with its range restricted to the states of Sergipe and southern Alagoas—one of the most critically fragmented and threatened biomes on Earth. Adults are small, with reddish-brown fur on the flanks and upperparts, pale grey on the underparts, and an orange-red forehead band. Like all titi monkeys, Callicebus coimbrai is highly social, living in monogamous family groups of 2–5 individuals that engage in elaborate dawn duets and tail-twining behaviour as expressions of pair bonding. The species inhabits Atlantic Forest fragments, including lowland and highland forest patches, riverine gallery forest, and secondary growth, where it subsists on fruits, seeds, leaves, and occasional invertebrates. The Coimbra-Filho's Titi is classified as Endangered by the IUCN due to its severely fragmented range within one of the world's most deforested biomes, with less than 12% of original Atlantic Forest remaining, ongoing habitat loss from agricultural expansion, and small, isolated population sizes highly vulnerable to stochastic extinction events.