Lenticulina gibba (d’Orbigny, 1839a)

Figure 2.5

1839a Cristellaria gibba d’Orbigny, p. 292, no. 17.

2001 Lenticulina gibba (d’Orbigny); Szarek, p. 203, pl. 15, figs. 1-2.

2002 Lenticulina gibba (d’Orbigny); Kaminski, Aksu, Box, Hiscott, Filipescu, and Al-Salameen, p. 172, pl. 2, fig. 6.

2010 Lenticulina gibba (d’Orbigny); Margreth, p. 150, pl. 12, fig. 7a-b.

2012 Lenticulina gibba (d’Orbigny); Debenay, p. 223.

Description. Test oblong, biconvex, wall finely perforate, surface smooth; chambers elongate, gradually increasing in size, chamber arrangement planispiral; periphery slightly keeled, sutures curved; aperture terminal, radiate, with a slightly longer slit on the apertural side.