Big-eared opossum vs Boreal Button Lichen

Didelphis aurita compared with Buellia disciformis

Key Differences

• Big-eared opossum is Least Concern while Boreal Button Lichen is Critically Endangered.

Taxonomic Classification

Rank	Big-eared opossum	Boreal Button Lichen
Kingdom	Animalia (动物界)	Fungi (真菌界)
Phylum	Chordata (脊索动物门)	Ascomycota (子囊菌门)
Class	Mammalia (哺乳動物)	Lecanoromycetes (茶漬綱)
Order	Didelphimorphia (负鼠目)	Caliciales (粉衣目)
Family	Didelphidae	Caliciaceae
Genus	Didelphis	Buellia
Species	Didelphis aurita	Buellia disciformis

Conservation Status

Big-eared opossum

LC — Least Concern

Boreal Button Lichen

CR — Critically Endangered

Physical Characteristics

Attribute	Big-eared opossum	Boreal Button Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big-eared opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Big-eared opossum

The Big-eared opossum (Didelphis aurita) is a species in the genus Didelphis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.