Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 360, Figs. 12: L. Oligocene (Rupelian), Byram Formation, Pearl River, Byram, Mississippi, USA. Side view of topotype, SEM, x 113 (from Andersen, 1984).