Clavulina angularis d’Orbigny, 1826

Bergh, Eugene W. & Compton, John S., 2022, Taxonomy of Middle Miocene foraminifera from the northern Namibian continental shelf, Zootaxa 5091 (1), pp. 1-55 : 7-8

Clavulina angularis d’Orbigny, 1826

Pl. 1, figs. 8–9

Clavulina angularis Brady, 1884, p. 396 , pl.48, figs. 22–24; Said, 1949, p. 8, pl. 1, fig. 19; Le Calvez, 1977, p.10, figs. 1–3; Banner & Pereira, 1981, pl. 9, figs. 5–6, pl. 10, figs. 4, 6, 10; Weidich, 1988, p. 340, pl, 2, figs. 1–24; Hottinger et al., 1993, p. 41 –42, pl. 21, figs. 1–13.

Clavulina pacifica, Cushman, 1924, p. 22 ; Coleman, 1980, figs. 1–3, pl. 1, figs. 1–8.

Description: The test wall is agglutinated, triangular in section and well cemented. The early stage is triserial, becoming uniserial and angular as chambers are added. Sutures are depressed. The aperture is rounded, dentate and terminal.

Remarks: Specimens from this species are large, up to 0.5x 2 mm. Few specimens of Clavulina angularis have been found in core 2670, forming trace components (<1%) of the total benthic foraminifera assemblage.

Life strategy: The species C. angularis has been reported to be infaunal and occurring in muddy sands (Abu-Zied et al., 2011).

Regional occurrence: This study records C. angularis to occur in middle Miocene sediments on the Namibian outer continental shelf, south of the Kunene River mouth.