Genus Dioristella Bittner, 1890

Type species: Atrypa pectinifera Sowerby, 1840 .

Stratigraphic distribution: Famennian to Kazanian,?Tatarian (upper Upper Devonian to Upper Permian). Geographic distribution: cosmopolitan.

MIN 0001555.1-6

Dioristella indistincta (Beyrich, 1862) Locality: Mt. Cassian, Tirol, Italy Stratigraphy: Cassian beds, Triassic