Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 439, Figs. 3-5: L. Pliocene, Italy. 3, Side view of paratype, x 40; 4, 5, top and side views of holotype, x 40 (from Loeblich and Tappan, 1955).