Globigerina bulloides d’Orbigny, 1826

Figure 13.4-5

1826 Globigerina bulloides d’Orbigny, p. 277, no. 1.

1983 Globigerina bulloides d’Orbigny; Kennet and Srinivasan, p. 36, pl. 6, figs. 4-6.

2010 Globigerina bulloides d’Orbigny; Ovechkina, Bylinskaya and Uken, p. 239, fig. 5G-5I.

Description. Test subglobular, wall perforate, surface smooth, with spines; chambers spherical, gradually increasing in size as added, chamber arrangement trochospiral, periphery rounded, sutures distinct and depressed; aperture high arch, umbilical, interiomarginal.