Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 18, Figs. 1-2: L. Devonian, Nevada, USA. 1, Paratype, 2, holotype, x 60 (from McClellan, 1973).Author Le Coze, FrançoisJPG file - 11.21 kB - 193 x 116 pixelsadded on 2023-07-1979 viewsForaminifera taxaAnictosphaera progressa McClellan, 1973 †checked Le Coze, François 2023-07-19 This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License