Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 119, Figs. 8-9: L. Cretaceous (Albian), Georgetown Formation, Williamson County, Texas. Side and top views of holotype, x 100 (from Loeblich and Tappan, 1982).
