Irrawaddy dolphin vs

Orcaella brevirostris compared with Rhizocarpon oederi

Key Differences

• Irrawaddy dolphin is Endangered while is Extinct.

Taxonomic Classification

Rank	Irrawaddy dolphin
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Cetacea (Whales & Dolphins)	Rhizocarpales (Rhizocarpales)
Family	Delphinidae (Oceanic Dolphins)	Rhizocarpaceae
Genus	Orcaella	Rhizocarpon
Species	Orcaella brevirostris	Rhizocarpon oederi

Conservation Status

Irrawaddy dolphin

EN — Endangered

EX — Extinct

Physical Characteristics

Attribute	Irrawaddy dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Rhizocarpon oederi is a crustose lichen historically recorded on siliceous rocks across parts of Europe and North America. It is now classified as Extinct (EX) on the IUCN Red List, representing one of the few lichen species confirmed to have been lost. Its disappearance is attributed to habitat destruction, air pollution, and the very specific microhabitat requirements that made it vulnerable.