Areniconulus bykovae Eisenack, 1969

Description:

 Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification.  Van Nostrand, Reinhold Co. New York 1728 pp. Plate 32, Figs. 1-3: M. Silurian (Wenlockian-L. Ludlovian), Baltic area. 1, 2, Holotype, at two Ievels of focus, x 130; 3, smaller individual with distinct early portion, x 130 (from Eisenack, 1969). courtesy of Michael Hesemann https://foraminifera.eu