Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 468, Figs. 14-16: Holocene, Atlantic. 14, 15, Casco Bay, Maine, USA, side and basal views of holotype, x 41; 16, Ungava Bay, at 73 m, off Akpatok Island, Quebec, Canada, side view of hypotype, x 41 (from Loeblich and Tappan, 1953).
