Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 406, Figs. 1-6: U. Cretaceous (U. Cenomanian-L. Turonian); 1-6, Bi'na Formation, Galilee, Israel; 1, Horizontal section, x 75; 2, nearly equatorial section, megalospheric, x 75; 3, nearly axial section, x 75; 4, vertical section becoming tangential in central part and showing many apertural pores, x 75; 5, nearly equatorial section of megalospheric test in incident light, x 20; 6, nearly equatorial section of microspheric test, x 30 (from Hamaoui, 1964). courtesy of Michael Hesemann https://foraminifera.eu
