limestone fern vs Mentawai Squirrel

Gymnocarpium robertianum compared with Callosciurus melanogaster

Key Differences

limestone fern is Critically Endangered while Mentawai Squirrel is Vulnerable.

Taxonomic Classification

Rank	limestone fern	Mentawai 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	Callosciurus
Species	Gymnocarpium robertianum	Callosciurus melanogaster

Conservation Status

limestone fern

CR — Critically Endangered

Mentawai Squirrel

VU — Vulnerable

Physical Characteristics

Attribute	limestone fern	Mentawai 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.