Ardilla-antilope de Sonora vs Pixie Foam

Ammospermophilus harrisii compared with Stereocaulon pileatum

Key Differences

• Ardilla-antilope de Sonora is Least Concern while Pixie Foam is Critically Endangered.

Taxonomic Classification

Rank	Ardilla-antilope de Sonora	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	Ammospermophilus	Stereocaulon
Species	Ammospermophilus harrisii	Stereocaulon pileatum

Conservation Status

Ardilla-antilope de Sonora

LC — Least Concern

Pixie Foam

CR — Critically Endangered

Physical Characteristics

Attribute	Ardilla-antilope de Sonora	Pixie Foam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ardilla-antilope de Sonora

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.