vs Pallas's squirrel, Red-bellied tree squirrel

Fuscidea praeruptorum compared with Callosciurus erythraeus

Key Differences

is Vulnerable while Pallas's squirrel, Red-bellied tree squirrel is Not Evaluated.

Taxonomic Classification

Rank		Pallas's squirrel, Red-bellied tree squirrel
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (Mammals)
Order	Umbilicariales (Umbilicariales)	Rodentia (Rodents)
Family	Fuscideaceae	Sciuridae (Squirrels)
Genus	Fuscidea	Callosciurus
Species	Fuscidea praeruptorum	Callosciurus erythraeus

Conservation Status

VU — Vulnerable

Pallas's squirrel, Red-bellied tree squirrel

NE — Not Evaluated

Physical Characteristics

Attribute		Pallas's squirrel, Red-bellied tree squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

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

Pallas's squirrel, Red-bellied tree squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (China, Japan), Europe (8 countries), and South America (Argentina).

Fuscidea praeruptorum is a crustose lichen in the family Fuscideaceae, assessed as Vulnerable (VU). It grows on siliceous rock surfaces in stable, undisturbed habitats and is sensitive to air pollution and land use changes. Its vulnerable status reflects the restricted occurrence of suitable clean-air rocky substrates.