American marten vs limestone fern

Martes americana compared with Gymnocarpium robertianum

Key Differences

• American marten is Least Concern while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	American marten	limestone fern
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Tracheophyta
Class	Mammalia (Mammals)	Polypodiopsida (Polypodiopsida)
Order	Carnivora (Carnivorans)	Polypodiales (Polypodiales)
Family	Mustelidae (Weasels & Otters)	Cystopteridaceae
Genus	Martes	Gymnocarpium
Species	Martes americana	Gymnocarpium robertianum

Conservation Status

American marten

LC — Least Concern

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	American marten	limestone fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American marten

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

limestone fern

Habitat

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

Range

Distributed across Belgium, Canada, Norway, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

American marten

The American marten (Martes americana) is a species in the genus Martes. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.