Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 153, Figs. 4-7: L. Oligocene, Matanzas Prov., Cuba. 4, 5, Side and top views of lectotype (USNM 498771), x 29; 6, 7, tangential and centered longitudinal half-sections of paratypes, x 29 (from Loeblich and Tappan, 1964).
