Blunt-headed Salamander vs Brittle Bladderfern

Ambystoma amblycephalum compared with Cystopteris tenuis

Key Differences

Blunt-headed Salamander is Critically Endangered while Brittle Bladderfern is Not Evaluated.

Taxonomic Classification

Rank	Blunt-headed Salamander	Brittle Bladderfern
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Tracheophyta
Class	Amphibia (Amphibians)	Polypodiopsida (Polypodiopsida)
Order	Caudata (Caudata)	Polypodiales (Polypodiales)
Family	Ambystomatidae	Cystopteridaceae
Genus	Ambystoma	Cystopteris
Species	Ambystoma amblycephalum	Cystopteris tenuis

Conservation Status

Blunt-headed Salamander

CR — Critically Endangered

Brittle Bladderfern

NE — Not Evaluated

Physical Characteristics

Attribute	Blunt-headed Salamander	Brittle Bladderfern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blunt-headed Salamander

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.

Brittle Bladderfern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Canada and United States.

Blunt-headed Salamander

The Blunt-headed Salamander (Ambystoma amblycephalum) is a species in the genus Ambystoma. It is currently classified as Critically Endangered on the IUCN Red List. 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 Neo

Brittle Bladderfern

The Brittle Bladderfern (Cystopteris tenuis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.