Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 447, Figs. 13-15: Holocene, Pacific, off Chatham lsland, Galapagos. 13, Side view of small individual, x 72; 14, 15, side and face views of holotype, x 72 (from McCulloch, 1977).
