Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 174, Figs. 1-9: L. Cretaceous (U. Barremian-Bedoulian), France. 1-3, Edge, side, and apical views of holotype, x 40; 4, transverse section of microspheric test, x 55; 5, transverse section of megalospheric test, x 70; 6, subaxial section of megalospheric test, x 55; 7, subaxial tangential section showing megalospheric trochospire, x 70; 8, subaxial section showing initial microspheric trochospire, x 55; 9, tangential section of megalospheric embryonic stage, x 145 (from Arnaud-Vanneau and Argot, 1973).