Laevidentalina soluta ( Reuss, 1851 )

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

Laevidentalina soluta ( Reuss, 1851)

Pl. 1, fig. 12

Dentalina soluta Reuss, 1851, p. 60 , pl. 3, figs. 4a–b.

Nodosaria (Dentalina) soluta Brady, 1884, p. 503 , pl. 62, figs. 13–16.

Description: The wall is calcareous and covered with short spines. The test is elongate, slightly arcuate, uniserial and circular in cross-section.Approximately six rounded conical chambers are connected to the next by a short neck. The base of each chamber is covered with hirsute structures. The aperture is terminal, at the end of a short neck.

Remarks: The specimen is long (2 mm) and thin (0.5 mm). The relative abundance is generally low, forming trace components (<1%) in some of the samples of core 2670.

Life strategy: Laevidentalina spp. are regarded as being infaunal ( Alegret et al., 2003) under varying oxygen conditions ( Cimerman & Langer, 1991; Sgarella & Moncharmont Zei, 1993; Rögl & Spezzaferri, 2002; Milker & Schmiedl, 2012).

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).