Taxonomy of Middle Miocene foraminifera from the northern Namibian continental shelf Author Bergh, Eugene W. 0000-0002-0765-4141 Marine Research Institute and Department of Geological Sciences, University of Cape Town, Private Bag X 3, Rondebosch, 7701, South Africa. & Department of Environmental and Geographical Sciences, University of Cape Town, Private Bag X 3, Rondebosch, 7701, South Africa; & Invertebrate palaeontology and Geology, Iziko South African Museum, P. O. Box 61, Cape Town 8000, South Africa. john. compton @ uct. ac. za; https: // orcid. org / 0000 - 0002 - 0765 - 4141 john.compton@uct.ac.za Author Compton, John S. Marine Research Institute and Department of Geological Sciences, University of Cape Town, Private Bag X 3, Rondebosch, 7701, South Africa. text Zootaxa 2022 2022-01-12 5091 1 1 55 journal article 2636 10.11646/zootaxa.5091.1.1 51b42715-ddb1-4b4a-aad4-8be0f600a287 1175-5326 5840434 ABC8AF70-F691-4D07-8F20-70934642C8BC Dentalina albatrossi ( Cushman, 1923a ) Pl. 1, fig. 10 Nodosaria vertebralis var. albatrossi, Cushman, 1923a , p. 47 , pl. 15, fig. 1. Dentalina albatrossi , Jones, 1994 , p. 76 , pl. 64, figs. 11–12, 14; Hanagata & Nobuhara, 2014 , p. 25 , fig. 9.12–9.13. Description: The wall is calcareous, hyaline. The test is elongate, slightly arcuate and uniserial, with the initial chamber possessing a short spine. Longitudinal continuous costae cover the test surface. The sutures are not depressed for most of the length of the test, except for the last few chambers towards the terminal end of the test. The chambers enlarge gradually toward the terminal end. The terminal chambers are also more oval in shape, compared to the initial portion of the test. The aperture is slightly protruding, terminal and radiate. Remarks: Few tests of this species were found, comprising <1% of the total benthic foraminifera assemblage in core 2670. The tests are up to 3 mm long and thin, measuring 0.15 mm in cross-section. Life strategy: This species is infaunal and adapted to suboxic to dysoxic conditions ( Kaiho, 1994 , 1999 ). Global stratigraphic range: Dentalina albatrossi is documented to occur from the Miocene to Recent ( Jones, 1994 ). Regional occurrence: This study records D. albatrossi to occur in middle Miocene sediments on the Namibian outer continental shelf, south of the Kunene River mouth.