Vaginulinopsis austinana (CUSHMAN, 1937)

Ismail, Ahmed A., 2012, Late Cretaceous-Early Eocene benthic foraminifera from Esh El Mallaha area, Egypt, Revue de Paléobiologie 31 (1), pp. 15-50 : 35-36

Vaginulinopsis austinana (CUSHMAN, 1937)

Pl. II, fig. 25

1937. Marginulina austinana CUSHMAN , p. 92, pl. 13, figs. 1-4.

1980. Vaginulinopsis austinana (CUSHMAN) .- SCHREIBER, p.

168, pl. 9, fig. 3.

Remarks: It is distinguished by having an elongated and compressed test with the early portion closely coiled and umbonate, while the later portion uncoiled. The chambers are not inflated and the sutures are indistinct.

Stratigraphic distribution: It is recorded in the Austin Chalk of Leonard Fannin County, Texas by CUSHMAN (1927, 1946). It is recorded in the Maastrichtian and Paleocene in Southwestern Desert in Egypt by LUGER (1985). It is recorded in Sudr Chalk of the Esh El Mallaha area.