Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 108, Figs. 1-6: L. Cretaceous (Bedoulian), France. 1, 2, Side and edge views in SEM; 3, longitudinal section showing biserial later stage; 4, transverse equatorial section of holotype showing early coil and later biserial stage; 5, 6, edge and side views of elongate individual; all x 50 (from Arnaud-Vanneau, 1980).