Neorotalia calcar (d’Orbigny, 1839a)

Figure 5.3-6

1839a Calcarina calcar d’Orbigny, p. 81, pl. 5, figs. 22-24.

2012 Neorotalia calcar (d’Orbigny); Debaney, pp. 204-205.

Description. Test biconvex, wall calcareous, perforate, surface ornamented with distinct, round and thick pustules on the dorsal side, ridges and many umbilical knobs on the ventral side; chambers many, slightly inflated and coiling evolute on the spiral side, involute on the umbilical side, trochospirally arranged; periphery angular, star-shaped with stout spines, sutures tilted and slightly depressed on the spiral side, radial and depressed on the umbilical side; primary aperture umbilical, low-arched opening bordered by a lip, secondary apertures peripheral, bordered by a lip.