limestone fern vs Ontong Java Flying Fox

Gymnocarpium robertianum compared with Pteropus howensis

Taxonomic Classification

Rank	limestone fern	Ontong Java Flying Fox
Kingdom	Plantae (植物)	Animalia (动物界)
Phylum	Tracheophyta	Chordata (脊索动物门)
Class	Polypodiopsida (水龍骨綱)	Mammalia (哺乳動物)
Order	Polypodiales (水龙骨目)	Chiroptera (翼手目)
Family	Cystopteridaceae	Pteropodidae (Fruit Bats)
Genus	Gymnocarpium	Pteropus (Flying Foxes)
Species	Gymnocarpium robertianum	Pteropus howensis

Conservation Status

limestone fern

CR — Critically Endangered

Ontong Java Flying Fox

CR — Critically Endangered

Physical Characteristics

Attribute	limestone fern	Ontong Java Flying Fox
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.