Boreal Button Lichen vs Caucasian Squirrel

Buellia disciformis compared with Sciurus anomalus

Key Differences

Boreal Button Lichen is Critically Endangered while Caucasian Squirrel is Least Concern.

Taxonomic Classification

Rank	Boreal Button Lichen	Caucasian Squirrel
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (Mammals)
Order	Caliciales (Caliciales)	Rodentia (Rodents)
Family	Caliciaceae	Sciuridae (Squirrels)
Genus	Buellia	Sciurus (Tree Squirrels)
Species	Buellia disciformis	Sciurus anomalus

Conservation Status

Boreal Button Lichen

CR — Critically Endangered

Caucasian Squirrel

LC — Least Concern

Physical Characteristics

Attribute	Boreal Button Lichen	Caucasian Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Boreal Button Lichen

Habitat

Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Caucasian Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Norway and United Arab Emirates.

Boreal Button Lichen

The Boreal Button Lichen (Buellia disciformis) is a species in the genus Buellia. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Caucasian Squirrel

The Caucasian Squirrel (Sciurus anomalus) is a species in the genus Sciurus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.