Amazon Black Howler vs limestone fern

Alouatta nigerrima compared with Gymnocarpium robertianum

Key Differences

• Amazon Black Howler is Least Concern while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	Amazon Black Howler	limestone fern
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Tracheophyta
Class	Mammalia (Mammals)	Polypodiopsida (Polypodiopsida)
Order	Primates (Primates)	Polypodiales (Polypodiales)
Family	Atelidae	Cystopteridaceae
Genus	Alouatta	Gymnocarpium
Species	Alouatta nigerrima	Gymnocarpium robertianum

Conservation Status

Amazon Black Howler

LC — Least Concern

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	Amazon Black Howler	limestone fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

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.

Amazon Black Howler

The Amazon Black Howler (Alouatta nigerrima) is a species in the genus Alouatta. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.