Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 319, Figs. 8-10: U. Jurassic, Weisser Jura, Wurgau, Franken, Germany. Opposite sides and edge view of topotype, x 78 (from Loeblich and Tappan, 1964).