Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 202, Figs. 5-12: . Paleocene (Montian), Netherlands. 5-8, Apertural view, opposite sides, and base, x 30; 9, sectioned specimen showing canaliculate wall and chambers surrounding the central hollow that is covered by successive apertural plates, x 65; 10, apertural view with part of chamber wall removed to show apertural plates, x 65 (5-10, from Hofker, 1966); 11, 12, side and apertural views of holotype, x 40 (from van Bellen, 1946).Author Le Coze, FrançoisJPG file - 133.50 kB - 434 x 514 pixelsadded on 2023-05-3061 viewsForaminifera taxaMarssonella keijzeri van Bellen, 1946 † accepted as Vacuovalvulina keijzeri (van Bellen, 1946) †checked Le Coze, François 2023-05-30 This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License