Astrononion stelligerum (d'Orbigny, 1839b)

Figure 7.11

1839b Nonionina stelligera d’Orbigny, p. 128, pl. 3, figs. 1-2.

2006 Astrononion stelligerum (d’Orbigny); Oflaz, p. 301, pl. 9, figs. 9-10.

2012 Astrononion stelligerum (d’Orbigny); Milker and Schmiedl, p. 113, fig. 26.7-8.

Description. Test compressed, side view circular, umbilical area depressed, wall calcareous, finely perforate, surface smooth, umbilicus, apertural side and along the sutures covered with granular pustules; chambers distinct, elongate, narrow, slightly inflated, gradually increasing in size; periphery subrounded, margin slightly angular, sutures distinct, strongly curved, slightly depressed; aperture an interiomarginal, low arch, equatorial opening at the base of the apertural face, bordered by a rim.