Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 287, Figs. 5, 6: L. Permian (Asselian), Mukhamedjarovo, S. Ural Mountains; 5, subaxial section of holotype, x 10; 6. sagittal section, x 10 (from Rauzer-Chernousova, 1937).