RUGOGLOBIGERINA Brönnimann, 1952

 

 

Type species: Globigerina rugosa Plummer, 1927 (*2421), p. 38; OD.

Rugoglobigerina Brönnimann, 1952 (*373), p. 16.Test in low to flat trochospiral coil of rap-idly enlarging globular chambers, biconvex, umbilicate, umbilicus occupying up to one-half the test diameter, periphery rounded, noncarinate; wall calcareous, perforate, sur­face with pustules, rugosities, and costellae in a meridional pattern; primary aperture interiomarginal, umbilical, with prominent tegilla and large proximal and distal acces­sory apertures. U. Cretaceous (L. Santonian to Maastrichtian); cosmopolitan.