Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 357, Figs. 11-13: Miocene, Muddy Creek, Clifton Bank, Hamilton, Australia. 11, 12, Apertural and side views of topotype, x 115 (from Loeblich and Tappan, 1964); 13, transverse section, x 125 (from Ponder, 1974).