Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 140, Figs. 1-2: U. Cretaceous (Senonian), Craie Blanche, Montereau, France. Side and apertural views of microspheric specimen (P. Marie Coll. no. 6028), x 64.
