Beech Tarcrust vs Brook Floater

Biscogniauxia nummularia compared with Alasmidonta varicosa

Key Differences

• Beech Tarcrust is Data Deficient while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Beech Tarcrust	Brook Floater
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Mollusca (Mollusks)
Class	Sordariomycetes (Sordariomycetes)	Bivalvia (Bivalvia)
Order	Xylariales (Xylariales)	Unionida (Unionida)
Family	Graphostromataceae	Unionidae
Genus	Biscogniauxia	Alasmidonta
Species	Biscogniauxia nummularia	Alasmidonta varicosa

Conservation Status

Beech Tarcrust

DD — Data Deficient

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Beech Tarcrust	Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beech Tarcrust

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (7 countries), and South America (Brazil).

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.

Beech Tarcrust

The Beech Tarcrust (Biscogniauxia nummularia) is a species in the genus Biscogniauxia. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

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.