Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 181, Figs. 6-11: U. Cretaceous (U. Cenomanian), France. 6, Slightly oblique horizontal section of megalospheric test, x 63; 7, tangential section through youngest layer of chambers of microspheric test, x 63; 8, tangential section through embryo and first layer of chambers, x 63; 9, tangential section of megalospheric test, x 63; 10, axial section of holotype of Neorbitolina cenomana Billotte, Moullade, and Vial, x 44; 11, part of axial section, x 63 (6-9, 11, from Schroeder, 1962; 10, from Billotte et al., 1974).