Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 735, Figs. 9: U. Cretaceous (L. Maastrichtian), Zmam Formation, subsurface, Sirte Basin, Cyrenaica, Libya. Oblique axial section, x 75 (from Brönnimann and Wirz, 1962).Author Loeblich & Tappan, 1987JPG file - 24.64 kB - 242 x 204 pixelsadded on 2023-12-0456 viewsForaminifera taxaDigital photo, entire speciesSirtina orbitoidiformis Brönnimann & Wirz, 1962 †checked Le Coze, François 2023-12-04 This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License