Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 196, Figs. 1-4: U. Cretaceous (Campanian), L. Taylor marl, Delta County, Texas, USA. 1, 3, 4, Holotype; 1, enlargement of cribrate aperture, x 270; 3, side view, x 75; 4, entire apertural face, x 110; 2, enlargement of broken chamber wall showing canaliculi, x 530; all SEM (from Banner and Desai, 1985).
