Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 289, Figs. 4-5: L. Permian (L. Asselian), Volgograd Oblast, Russia. 4. Axial section of paratype, x 15; 5, axial section of holotype, x 15 (from Kireeva et al., 1971).