Pacific Spiny-rat vs Upper Crust

Proechimys decumanus compared with Amaurodon cyaneus

Key Differences

• Pacific Spiny-rat is Near Threatened while Upper Crust is Vulnerable.

Taxonomic Classification

Rank	Pacific Spiny-rat	Upper Crust
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Rodentia (Rodents)	Thelephorales (Thelephorales)
Family	Echimyidae	Thelephoraceae
Genus	Proechimys	Amaurodon
Species	Proechimys decumanus	Amaurodon cyaneus

Conservation Status

Pacific Spiny-rat

NT — Near Threatened

Upper Crust

VU — Vulnerable

Physical Characteristics

Attribute	Pacific Spiny-rat	Upper Crust
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Upper Crust

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

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