Broadback cuttlefish vs Colombian Oldfield Mouse

Sepia savignyi compared with Thomasomys dispar

Taxonomic Classification

Rank	Broadback cuttlefish	Colombian Oldfield Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Cephalopoda (Cephalopods)	Mammalia (Mammals)
Order	Sepiida (Sepiida)	Rodentia (Rodents)
Family	Sepiidae	Cricetidae
Genus	Sepia	Thomasomys
Species	Sepia savignyi	Thomasomys dispar

Evolutionary Relationship

Broadback cuttlefish and Colombian Oldfield Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Broadback cuttlefish

DD — Data Deficient

Colombian Oldfield Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Broadback cuttlefish	Colombian Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broadback cuttlefish

Colombian Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Broadback cuttlefish

The Broadback cuttlefish (Sepia savignyi) is a species in the genus Sepia. It is currently classified as Data Deficient on the IUCN Red List.

Colombian Oldfield Mouse

<em>Thomasomys dispar</em>, commonly known as the Colombian Oldfield Mouse, is a small rodent species belonging to the genus <em>Thomasomys</em> within the family Cricetidae. This species is classified as Data Deficient, indicating that insufficient information is currently available to evaluate its conservation status with confidence. It has been documented in Colombia, where it inhabits diverse terrestrial and aquatic-adjacent environments. Members of the genus <em>Thomasomys</em> are typically associated with high-altitude Andean habitats, including páramo grasslands, shrublands, and montane forest edges, where they occupy ground-level microhabitats and burrow in soft soils. These mice are generally omnivorous, consuming seeds, plant material, and invertebrates, though specific dietary data for <em>Thomasomys dispar</em> have not been recorded. Biological traits of this species remain poorly documented in the scientific literature. The Data Deficient classification highlights the need for targeted surveys in Colombian Andean regions to determine population size, distribution, and the ecological requirements of this poorly known rodent.