Caatinga laucha vs limestone fern

Calomys expulsus compared with Gymnocarpium robertianum

Key Differences

• Caatinga laucha is Least Concern while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	Caatinga laucha	limestone fern
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Tracheophyta
Class	Mammalia (Mammals)	Polypodiopsida (Polypodiopsida)
Order	Rodentia (Rodents)	Polypodiales (Polypodiales)
Family	Cricetidae	Cystopteridaceae
Genus	Calomys	Gymnocarpium
Species	Calomys expulsus	Gymnocarpium robertianum

Conservation Status

Caatinga laucha

LC — Least Concern

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	Caatinga laucha	limestone fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Caatinga laucha

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Caatinga laucha

The Caatinga laucha (Calomys expulsus) is a species in the genus Calomys. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.