Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 459, Figs. 15-16: L. Cretaceous (Aptian), Sandgate Beds, Kent, England. Top and side views of hypotype (USNM Cushman Coll. 42717 , x 170 (from Loeblich and Tappan, 1964).
