Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 189, Figs. 8-12: M. Oligocene (Rupelian), Septarienthon, Hermsdorf, Germany. 8, 9, Top and side views of lectotype, megalospheric, magnification not given (from Reuss, 1851); 10, megalospheric topotype, x 40; 11, 12, side and edge views of microspheric topotype, x 40 (10-12, USNM, Cushman Coll. 20974).