Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 240, Figs. 13-15: L. Carboniferous (L. Visean), Donbas, Ukraine. 13, Axial section, x 75; 14, horizontal section, x 90; 15, axial section of holotype, x 100 (from Brazhnikova, 1962).