Brook Floater vs Woolly Rosette

Alasmidonta varicosa compared with Cotylidia pannosa

Key Differences

• Brook Floater is Vulnerable while Woolly Rosette is Extinct.

Taxonomic Classification

Rank	Brook Floater	Woolly Rosette
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Basidiomycota (Club Fungi)
Class	Bivalvia (Bivalvia)	Agaricomycetes (Mushrooms)
Order	Unionida (Unionida)	Hymenochaetales (Hymenochaetales)
Family	Unionidae	Rickenellaceae
Genus	Alasmidonta	Cotylidia
Species	Alasmidonta varicosa	Cotylidia pannosa

Conservation Status

Brook Floater

VU — Vulnerable

Woolly Rosette

EX — Extinct

Physical Characteristics

Attribute	Brook Floater	Woolly Rosette
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.

Woolly Rosette

Habitat

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

Range

Distributed across Denmark, Norway, Sweden, and United States.

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.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States