Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 320, Figs. 1-3: Holocene, Pacific, Hood Island, Galapagos, at 30 m. Spiral side, edge, and umbilical views of holotype, x 165 (from McCulloch, 1977). courtesy of Michael Hesemann https://foraminifera.eu
