Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 380, Figs. 7-13: U. Cretaceous (Cenomanian), Île Madame, Charente Maritime, France. 7, Structural diagram, x 50; 8, tangential section, x 27; 9, 10, 13, axial sections of megalospheric tests, x 27; 11, equatorial section of megalospheric test, x 27; 12, axial section of microspheric test, designated in Loeblich and Tappan (1987) as lectotype, x 27 (all from Reichel, 1936).
courtesy of Michael Hesemann https://foraminifera.eu