CONDRUSTELLA Conil and Longerstaey, 1977
Type species: `Mstinia"modavensis Conil and Lys, 1967 (*664), p. B398; OD.
Condrustella Conil and Longerstaey, in Conil and Lys, 1977 (*667), p. 32.
Test of medium size, up to 0.8 mm in diameter, enrolled and fully chambered through-out, with few whorls and few teardrop-shaped chambers in each whorl; wall calcareous, microgranular, thick, coarsely agglutinated, with thin dark inner microgranular layer; aperture simple, basal. L. Carboniferous (U. Tournaisian to Visean); Belgium; England.