Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 333, Figs. 6-8: Holocene, Mediterranean. 6, Large paratype showing coarsely agglutinated test, x 17; 7, holotype showing early chamber arrangement, x 30; 8, paratype showing early stage, x 30 (from Colom, 1959). courtesy of Michael Hesemann https://foraminifera.eu
