Brook Floater vs Golden Thorius

Alasmidonta varicosa compared with Thorius aureus

Key Differences

• Brook Floater is Vulnerable while Golden Thorius is Critically Endangered.

Taxonomic Classification

Rank	Brook Floater	Golden Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Amphibia (Amphibians)
Order	Unionida (Unionida)	Caudata (Caudata)
Family	Unionidae	Plethodontidae
Genus	Alasmidonta	Thorius
Species	Alasmidonta varicosa	Thorius aureus

Evolutionary Relationship

Brook Floater and Golden Thorius share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Golden Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Brook Floater	Golden Thorius
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Floater

Habitat

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

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Golden Thorius

Habitat

Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.