Blistered Rock Tripe vs Common Metad

Umbilicaria hyperborea compared with Millardia meltada

Key Differences

• Blistered Rock Tripe is Extinct while Common Metad is Least Concern.

Taxonomic Classification

Rank	Blistered Rock Tripe	Common Metad
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (Mammals)
Order	Umbilicariales (Umbilicariales)	Rodentia (Rodents)
Family	Umbilicariaceae	Muridae (Mice & Rats)
Genus	Umbilicaria	Millardia
Species	Umbilicaria hyperborea	Millardia meltada

Conservation Status

Blistered Rock Tripe

EX — Extinct

Common Metad

LC — Least Concern

Physical Characteristics

Attribute	Blistered Rock Tripe	Common Metad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blistered Rock Tripe

Habitat

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

Range

Distributed across Denmark, Norway, Sweden, and United States.

Common Metad

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Blistered Rock Tripe

The Blistered Rock Tripe (Umbilicaria hyperborea) is a species in the genus Umbilicaria. It is currently classified as Extinct on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Common Metad

The Common Metad (<em>Millardia meltada</em>) is a rodent belonging to the genus <em>Millardia</em> within the family Muridae. As a member of the Old World rats and mice, this species is typically found in diverse terrestrial and aquatic ecosystems across its range. The Common Metad is classified as Least Concern on the IUCN Red List, indicating that its populations are currently stable and not facing immediate extinction risk. Detailed biological traits such as body length, weight, and lifespan have not been widely documented for this species in available records. Its taxonomy places it within the order Rodentia, which encompasses a broad array of gnawing mammals adapted to a wide variety of ecological niches. While specific dietary habits are not well characterized in the available data, members of the genus <em>Millardia</em> are generally understood to be omnivorous, feeding on plant material and invertebrates typical of their habitat. Ongoing monitoring is important for ensuring this species maintains its current conservation standing.