limestone fern vs Nelson s Antelope Squirrel

Gymnocarpium robertianum compared with Ammospermophilus nelsoni

Key Differences

limestone fern is Critically Endangered while Nelson s Antelope Squirrel is Endangered.

Taxonomic Classification

Rank	limestone fern	Nelson s Antelope Squirrel
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (Mammals)
Order	Polypodiales (Polypodiales)	Rodentia (Rodents)
Family	Cystopteridaceae	Sciuridae (Squirrels)
Genus	Gymnocarpium	Ammospermophilus
Species	Gymnocarpium robertianum	Ammospermophilus nelsoni

Conservation Status

limestone fern

CR — Critically Endangered

Nelson s Antelope Squirrel

EN — Endangered

Physical Characteristics

Attribute	limestone fern	Nelson s Antelope Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.