Paraendothyra nalivkini Chernysheva, 1940

描述：

Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 243, Figs. 1-4: L. Carboniferous (M. Tournaisian), S. Urals. 1, Axial section, x 40; 2, equatorial section, x 40; 3, 4, face and side views, x 30 (from Rauzer-Chernousova and Fursenko, 1959). courtesy of Michael Hesemann https://foraminifera.eu