Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 445, Figs. 1-6: Pliocene, offshore Texas, USA. 1, 2, Side view of holotype, x 50, and apertural view, x 45; 3, 4, face view of paratype, x 35, and side view, x 42; 5, 6, enlargement of apertures, x 311 and x 283, respectively; all SEM (from Haman, 1978).
