Lagena sulcata (WALKER & JACOB, 1798)

Ismail, Ahmed A., 2012, Late Cretaceous-Early Eocene benthic foraminifera from Esh El Mallaha area, Egypt, Revue de Paléobiologie 31 (1), pp. 15-50 : 33

Lagena sulcata (WALKER & JACOB, 1798)

Pl. II, fig. 6

1798. Serpula (Lagena) sulcata WALKER & JACOB , p. 634, pl. 14, fig. 5.

1929. Lagena sulcata (WALKER & JACOB) .- CUSHMAN, p. 70, pl. 11, fig. 5.

1956. Lagena sulcata (WALKER & JACOB) .- SAID & KENAWY, p. 136, pl. 3, fig. 6.

1985. Lagena sulcata (WALKER & JACOB) .- LUGER, p. 81, pl. 4, fig. 6.

Remarks: It is characterized by a subglobulose test with numerous longitudinal costae.

Stratigraphic distribution: It is recorded in the Esna Shale by LE ROY (1953) and in the Tarawan, Garra and Esna formations by LUGER (1985). In the study area, it is recorded in the Maastrichtian and Paleocene zones.