Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 193, Figs. 10-12: Pliocene, Crag, Antwerp, Belgium. Side, top, and edge views, enlarged (from Reuss, 1861).