Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 438, Figs. 7-9: L. Cretaceous (Albian), Balearic Islands, Spain. Side view facing angle, top view, and view of concave side, x 64 (from Colom, 1982).
