Glaucoammina trilateralis (Cushman, 1935)

Description:

Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification.  Van Nostrand, Reinhold Co. New York 1728 pp. Plate 203, Figs. 1-4: Holocene, Cochinos Bay, Cuba. 1, Side view of triangular individual similar to holotype, SEM, x 50; 2, 3, longitudinal half-section of specimen that had three early chambers of triangular section and flattened final chamber, SEM, x 50, and part enlarged to show the irregular alveoles in the thick agglutinated wall, SEM, x 150; 4, longitudinal section showing coarsely agglutinated wall and little cement, x 85 (from Loeblich and Tappan, 1985).