Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 328, Figs. 16-17: . Jurassic (U. Bajocian or L. Bathonian), Moldova. 16, Microspheric holotype, x 280; 17, megalospheric paratype, x 280 (from Danich, 1969). courtesy of Michael Hesemann https://foraminifera.eu
