ADRAHENTINA Bilotte, 1978

 

 

Type species: Adrahentina iberica Bilotte, 1978; OD(M).

Adrahentina Bilotte, 1978 (*239), p. 126.Test large, up to about 2 mm in diameter, ovoid to subspherical, megalospheric test with large globular proloculus, microspheric early stage not observed, megalospheric proloculus followed by about ten spherical chambers, each completely enveloping the test as added, internally many radial pillars arise from the chamber floor but not all reach the chamber roof, pillars of a thickness about equal to that of the chamber walls; outer wall forming the chamber roof of porcelaneous pellicular cal-cite, with relatively thick agglutinated layer of quartz particles added as a floor for each new chamber and forming the inner pillars; aperture not observed, probably with a tremat-ophorelike. U. Cretaceous (Maastrichtian); Spain.