Genus Cyrtina Davidson, 1859

Type species: Calceola heteroclita Defrance, 1828 .

Stratigraphic distribution: lower Lochkovian to Visean (lower Lower Devonian to Lower Carboniferous. Geographic distribution: cosmopolitan.

MIN 0001450

Cyrtina heteroclita (Defrance, 1828)

Locality: Ahler Hütte, Lahntal, Middle Rhine area, Germany Stratigraphy: Laubach beds, Upper Emsian, upper Lower Devonian