Coprinellus truncorum
- kingdom: Fungi
- phylum: Basidiomycota
- class: Agaricomycetes
- order: Agaricales
- family: Psathyrellaceae
- genus: Coprinellus
- species: Coprinellus truncorum
- St. Catharines
Ontario
Canada- Denver
- Northglenn
- Thornton
Colorado- Glencoe
Illinois- Bryn Mawr-Skyway
- Tukwila
Washington
United States