Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 243, Figs. 24-26: L. Carboniferous (Tournaisian), Urals. 24, Oblique axial section, x 90; 25, holotype. x 95; 26, nearly horizontal section, x 75 (from Malakhova, 1956).