European Ground Squirrel vs Rusty Crust

Spermophilus citellus compared with Skeletocutis amorpha

Key Differences

• European Ground Squirrel is Endangered while Rusty Crust is Least Concern.

Taxonomic Classification

Rank	European Ground Squirrel	Rusty Crust
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Rodentia (Rodents)	Polyporales (Polyporales)
Family	Sciuridae (Squirrels)	Incrustoporiaceae
Genus	Spermophilus	Skeletocutis
Species	Spermophilus citellus	Skeletocutis amorpha

Conservation Status

European Ground Squirrel

EN — Endangered

Rusty Crust

LC — Least Concern

Physical Characteristics

Attribute	European Ground Squirrel	Rusty Crust
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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.

Rusty Crust

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.