Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 426, Figs. 5-7: Miocene (Aquitanian), Saipan. 5, Horizontal section, x 20; 6, subaxial section, x 20; 7, axial section through proloculus, x 80 (from Hanzawa, 1957).