Common Freckle Pelt Lichen vs koala

Peltigera aphthosa compared with Phascolarctos cinereus

Key Differences

• Common Freckle Pelt Lichen is Extinct while koala is Vulnerable.

Taxonomic Classification

Rank	Common Freckle Pelt Lichen	koala
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (cordados)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (mamíferos)
Order	Peltigerales (Peltigerales)	Diprotodontia (Marsupials)
Family	Peltigeraceae	Phascolarctidae (Koalas)
Genus	Peltigera	Phascolarctos (Koalas)
Species	Peltigera aphthosa	Phascolarctos cinereus

Conservation Status

Common Freckle Pelt Lichen

EX — Extinct

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Freckle Pelt Lichen	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 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.

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia. Currently classified as Vulnerable 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.

koala

Icónico marsupial del este y sureste de Australia, los koalas pesan hasta 15 kg y pasan hasta 22 horas diarias durmiendo para conservar energía de su dieta de hojas de eucalipto, baja en calorías. Altamente especializados para procesar los compuestos tóxicos del eucalipto que matarían a la mayoría de los demás mamíferos, poseen microbiomas intestinales únicamente adaptados para la desintoxicación. Clasificado como En Peligro en 2022, con poblaciones diezmadas por la enfermedad de clamidia, la deforestación y el cambio climático.