Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 79, Figs. 4-8: U. Jurassic (Oxfordian), Uzbekistan. 4, Axial section showing sharp change in plane of coiling from early to later whorls, x 94; 5-7, opposite sides and face view of holotype showing small areal aperture, x 94; 8, horizontal section, x 90 (from Kurbatov, 1971).