Arboreal Thorius vs European Ground Squirrel

Thorius arboreus compared with Spermophilus citellus

Key Differences

• Arboreal Thorius is Critically Endangered while European Ground Squirrel is Endangered.

Taxonomic Classification

Rank	Arboreal Thorius	European Ground Squirrel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Caudata (Caudata)	Rodentia (Rodents)
Family	Plethodontidae	Sciuridae (Squirrels)
Genus	Thorius	Spermophilus
Species	Thorius arboreus	Spermophilus citellus

Evolutionary Relationship

Arboreal Thorius and European Ground Squirrel share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arboreal Thorius

CR — Critically Endangered

European Ground Squirrel

EN — Endangered

Physical Characteristics

Attribute	Arboreal Thorius	European Ground Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arboreal Thorius

Habitat

Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

European Ground Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Arboreal Thorius

The Arboreal Thorius (Thorius arboreus) is a species in the genus Thorius. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neo.