Long-tailed Ground Squirrel vs Pixie Foam

Urocitellus undulatus compared with Stereocaulon pileatum

Key Differences

• Long-tailed Ground Squirrel is Least Concern while Pixie Foam is Critically Endangered.

Taxonomic Classification

Rank	Long-tailed Ground Squirrel	Pixie Foam
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (cordados)	Ascomycota (Sac Fungi)
Class	Mammalia (mamíferos)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (Rodents)	Lecanorales (Lecanorales)
Family	Sciuridae (Squirrels)	Stereocaulaceae
Genus	Urocitellus	Stereocaulon
Species	Urocitellus undulatus	Stereocaulon pileatum

Conservation Status

Long-tailed Ground Squirrel

LC — Least Concern

Pixie Foam

CR — Critically Endangered

Physical Characteristics

Attribute	Long-tailed Ground Squirrel	Pixie Foam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Long-tailed Ground Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Pixie Foam

Habitat

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

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.