Genus Pterospirifer Dunbar, 1955

Type species: Spirifer alatus von Schlotheim, 1813.

Stratigraphic distribution: Cisuralian to Lopingian (Permian). Geographic distribution: Europe, Greenland, Siberia.

MIN 0001698.1-2

Pterospirifer alatus (von Schlotheim, 1813) Locality: Pressneck, Thuringia, Germany Stratigraphy: Permian