Laevidentalina sp. B

Bergh, Eugene W. & Compton, John S., 2022, Taxonomy of Middle Miocene foraminifera from the northern Namibian continental shelf, Zootaxa 5091 (1), pp. 1-55 : 9-10

Laevidentalina sp. B

Pl. 1, fig. 14

Description: The test wall is calcareous. The test is elongate, slender, uniserial, arcuate and circular in cross-section. The initial end is pointed. The chambers are separated by flush sutures and gradually increase in size toward the apertural end. The surface of the test is smooth. The aperture is terminal and arcuate in shape on a short neck.

Remarks: Few tests of this species were recorded, accounting for a trace component (<1%) of the assemblage in core 2670. The tests are relatively large, measuring 0.1 mm in cross section and up to 1 mm in length.

Life strategy: The genus Laevidentalina has been reported as being infaunal ( Alegret et al., 2003) under high ( Cimerman & Langer, 1991; Sgarella & Moncharmont Zei, 1993; Milker & Schmiedl, 2012) and suboxic to dysoxic conditions ( Rögl & Spezzaferri, 2002).

Global stratigraphic range: The stratigraphic range for the genus Laevidentalina is Cretaceous to Recent ( Loeblich & Tappan, 1988).

Regional occurrence: This species is recorded to occur in middle Miocene sediments on the Namibian outer continental shelf, south of the Kunene River mouth (this study).