pyramidmossa
Pyramidula tetragona
Conservation status data sourced from the IUCN Red List of Threatened Species.
Taxonomy & Classification
Kingdom
Plantae
Phylum
Bryophyta
Class
Bryopsida
Order
Funariales
Family
Funariaceae
Genus
Pyramidula
pyramidmossa belongs to the family Funariaceae, order Funariales, within the Bryopsida class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Pyramidula tetragona faces severe population declines due to habitat destruction from agricultural expansion and urban development across its range. The species' specialized habitat requirements and limited dispersal ability make it particularly vulnerable to fragmentation, while climate change is altering the moisture and temperature conditions essential for its survival.
Key Facts
Habitat & Distribution
This species inhabits calcareous grasslands, rocky outcrops, and limestone pavements, typically in areas with thin soils and specific pH conditions. It is often found in semi-natural grasslands, quarries, and disturbed ground with exposed mineral soil between 0-800m elevation.
Threats
IUCN Red List: Critically Endangered
Pyramidula tetragona faces severe population declines due to habitat destruction from agricultural expansion and urban development across its range. The species' specialized habitat requirements and limited dispersal ability make it particularly vulnerable to fragmentation, while climate change is altering the moisture and temperature conditions essential for its survival.
Climate change altering microhabitat conditions
Habitat loss from agricultural conversion
Urban development and infrastructure expansion
Habitat fragmentation reducing population connectivity
Pollution and chemical contamination
National vs Global Threat Status
How this species is assessed at the national level compared to its IUCN global status (CR).
| Country | National Status | Global Status | Comparison |
|---|---|---|---|
| EU | ENEndangered | CRCritically Endangered | Lower local risk |
| EU | ENEndangered | CRCritically Endangered | Lower local risk |
National Red List data sourced from the National Red List Project (nationalredlist.org, ZSL) and country-specific Red List authorities.
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
National Red Lists: ZSL (2025). National Red List. Zoological Society of London. Available at: https://www.nationalredlist.org
This page: SpeciesRadar (2025). pyramidmossa (Pyramidula tetragona). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/pyramidmossa