Common Freckle Pelt Lichen vs Komodo Dragon

Peltigera aphthosa compared with Varanus komodoensis

Key Differences

• Common Freckle Pelt Lichen is Extinct while Komodo Dragon is Endangered.

Taxonomic Classification

Rank	Common Freckle Pelt Lichen	Komodo Dragon
Kingdom	Fungi (Fungi)	Animalia (animal)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Reptilia (Reptiles)
Order	Peltigerales (Peltigerales)	Squamata (Lizards & Snakes)
Family	Peltigeraceae	Varanidae (Monitor Lizards)
Genus	Peltigera	Varanus (Monitor Lizards)
Species	Peltigera aphthosa	Varanus komodoensis

Conservation Status

Common Freckle Pelt Lichen

EX — Extinct

Komodo Dragon

EN — Endangered

Population: ~3.5K

Trend: Stable →

Physical Characteristics

Attribute	Common Freckle Pelt Lichen	Komodo Dragon
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	2.6 m
Average Weight	—	70.0 kg

Habitat & Geographic Range

Common Freckle Pelt Lichen

Habitat

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

Range

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

Komodo Dragon

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Indonesia. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Freckle Pelt Lichen

<em>Peltigera aphthosa</em> is a foliose lichen in the family Peltigeraceae, order Peltigerales, commonly known as common freckle pelt or speckled felt lichen. This species holds the conservation status of Extinct on the IUCN Red List, representing a serious loss of biodiversity. <em>Peltigera aphthosa</em> has been recorded in Denmark, Norway, Sweden, and the United States. Historically, this lichen grew in cool, humid environments including boreal and montane forests, typically on mossy ground, rocks, and tree bases in old-growth habitats. Like other members of the genus Peltigera, <em>Peltigera aphthosa</em> is a tripartite lichen containing a cyanobacterial photobiont (providing nitrogen fixation) in addition to the primary green algal photobiont and fungal mycobiont, making it an ecologically significant contributor to nutrient cycling. Its large, lobed thallus was characterized by distinctive dark cephalodia — wart-like structures housing the nitrogen-fixing cyanobacteria. The extinction of this species underscores the vulnerability of lichens to habitat degradation, air pollution, and climate change. Biological traits of this species remain poorly documented in the scientific literature.

Komodo Dragon

The Komodo dragon is the largest living lizard. It is found only on a few Indonesian islands.