Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 343, Figs. 16-19: Eocene (Bartonian), Le Guépelle, France. 16, Transverse section, x 30 (from Schlumberger, 1905); 17-19, opposite sides and apertural view of paratype[?] (topotype), x 27 (from Loeblich and Tappan, 1964).