Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 468, Figs. 20-22: Holocene, Chukchi Sea, at 49 m, off Point Barrow, Alaska, USA. Opposite sides and basal view of holotype, x 90 (from Loeblich and Tappan, 1953).
