Asterorotalia dentata (Parker and Jones, 1865)

Figure 4.13-14

1865 Rotalia beccarii (Linnaeus) var. dentata Parker and Jones, pp. 387-388, 422, pl. 19, fig. 18a-c.

2014 Asterorotalia dentata (Parker and Jones); Panchang and Nigam, pl. 36, fig. 12a-b.

Description. Test circular, wall calcareous, perforate, surface smooth; chambers many, arranged trochospirally, triangular and convex on the umbilical side; periphery keeled, with short, blunt spines, sutures distinct, thick, slightly curved on the spiral side, radial and deeply sutured on the umbilical side; aperture an arch-shaped opening at the terminal end of the apertural face.