Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 242, Figs. 18-20: L. Carboniferous (U. Tournaisian), Donets Basin, Ukraine. 18, Axial section of holotype, x 75; 19, 20, sagittal sections, x 75 (from Brazhnikova and Vdovenko, 1971).