Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 409, Figs. 1-4: Paleocene (Danian), Cuba. 1, 2, Median sections perpendicular to axis of coiling, x 25; 3, tangential section parallel to axis of coiling, x 25; 4, transverse section through terminal stage showing apertural pores, pillars, and radial partitions, x 25 (from Keijzer, 1945).