Fallotella alavensis Mangin, 1954

Description:

Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification.  Van Nostrand, Reinhold Co. New York 1728 pp. Plate 173, Figs. 1-7: M. Paleocene, Yugoslavia. 1, Axial section of megalospheric test; 2, basal section nearly perpendicular to axis of cone showing short incomplete secondary beams; 3, axial section of microspheric test; 4, basal section perpendicular to axis, upper part of figure showing forked pattern resulting from the marginal apertures; 5, tangential section of trochoid early growth stage and early cone chambers of megalospheric test; 6, vertical section parallel to cone axis; 7, tangential section showing radial partitions of marginal zone; all x 30 (from Hottinger and Drobne, 1980).