Spiroloculina excavata d’Orbigny, 1846

Figure 21.10

1846 Spiroloculina excavata d’Orbigny, p. 271, pl. 16, figs. 19-21.

2002 Spiroloculina excavata d’Orbigny; Kaminski, Aksu, Box, Hiscott, Filipescu and Al-Salameen, p. 170, pl. 1, fig. 11.

2003 Spiroloculina excavata d’Orbigny; Murray, p. 17, fig. 4.13-14.

2005 Spiroloculina excavata d’Orbigny; Debenay, Millet and Angelidis, p. 334, pl. 2, fig. 14.

2012 Spiroloculina excavata d’Orbigny; Milker and Schmiedl, p. 50, fig. 13.3-4.

Description. Test subrounded, wall porcelaneous, imperforate, surface smooth; chambers strongly concave, spiroloculine chamber arrangement; peripheral margin truncate; aperture terminal, elliptical, bordered by a rim, with a short bifid tooth.