Genus Spinocyrtia Frederiks, 1916

Type species: Delthyris granulosa Conrad, 1839 . Stratigraphic distribution: Middle Devonian. Geographic distribution: cosmopolitan.

MIN 0001632.1-2

Spinocyrtia ostiolata (von Schlotheim, 1820) Locality: Pelm, Eifel region, Germany Stratigraphy: Eifelian, lower Middle Devonian