Globigerinoidea

Globigerinoidea is a superfamily of free-living, calcareous, planktonic foraminiferal protists that have lived in the open ocean since the Eocene.

walls are perforate with numerous small pores or fewer larger ones and the surface may be covered with narrow elongate monocrystalline spines.

Apertures vary in position from interiomarginal to equatorial and may be relatively large.

The Globigerinidae (L&T 1964) has a longer range, extending from the Late Cretaceous (Maastrichtian) because of the inclusion of Globorotalioides which has been moved to the Globorataliacea as Eoglobiberina.

Four subfamilies are included in the Globigerinidae (L&T 1964), the Globigerininae, Sphaeroidinellinae, Capsydracinae, and Obitoidinae.