Triloculina insignis (Brady, 1881)

Figure 20.11-12

1881 Miliolina insignis Brady, p. 45.

1999 Triloculina insignis (Brady); Nigam and Khare, p. 292, pl. 3, fig. 4.

2014 Triloculina insignis (Brady); Panchang and Nigam, pl. 13, fig. 3a-c.

Description. Test subcircular, wall calcareous, imperforate, surface ornamented with many longitudinal costae; chambers inflated, arranged in a triloculine plan; peripheral margin carinate, periphery subrounded, sutures depressed; aperture terminal, circular opening on a short neck, bordered by a thin, slightly everted rim, with a prominent bifid tooth raised to be seen above the periphery of the aperture.