Atlantic Gray Seal vs Dark Gray Boulder Lichen

Halichoerus grypus compared with Porpidia cinereoatra

Key Differences

• Atlantic Gray Seal is Vulnerable while Dark Gray Boulder Lichen is Near Threatened.

Taxonomic Classification

Rank	Atlantic Gray Seal	Dark Gray Boulder Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Pinnipedia (Seals & Sea Lions)	Lecideales (Lecideales)
Family	Phocidae (True Seals)	Lecideaceae
Genus	Halichoerus	Porpidia
Species	Halichoerus grypus	Porpidia cinereoatra

Conservation Status

Atlantic Gray Seal

VU — Vulnerable

Dark Gray Boulder Lichen

NT — Near Threatened

Physical Characteristics

Attribute	Atlantic Gray Seal	Dark Gray Boulder Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Gray Seal

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Dark Gray Boulder Lichen

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Atlantic Gray Seal

The Atlantic Gray Seal (Halichoerus grypus) is a species in the genus Halichoerus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden