Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 34, Figs. 3-7: U. Carboniferous (Westphalian), Pennsylvanian, Smithwick Formation, Algerita, Texas, USA. 3, Holotype, with very rapidly flaring test and broad apertural opening; 4, 7, side views of paratypes; 5, 6, apertural and side views of paratype; all x 40 (from Plummer, 1945).Author Loeblich & Tappan, 1987JPG file - 70.93 kB - 424 x 175 pixelsadded on 2023-12-0430 viewsForaminifera taxaDigital photo, entire speciesHyperamminoides expansus Plummer, 1945 † accepted as Kechenotiske expansa (Plummer, 1945) †checked Le Coze, François 2023-12-04 This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License