Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 324, Figs. 5-6: U. Carboniferous (Stephanian) Pennsylvanian, Graham Formation, near Graham, Young County, Texas, USA. Free and attaehed sides of holotype (USNM Cushman Coll. 7684), x 53.Author Le Coze, FrançoisJPG file - 30.45 kB - 204 x 253 pixelsadded on 2023-07-1592 viewsForaminifera taxaCalcitornella elongata Cushman & Waters, 1928 †checked Le Coze, François 2023-07-15 This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License