World Register of Marine Species (WoRMS)
Pseudopolymorphina Cushman & Ozawa, 1928
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Pseudopolymorphina Cushman & Ozawa, 1928. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=112255 on 2026-08-25
Cushman, J. A.; Ozawa, Y. (1928). An outline of a revision of the Polymorphinidae. Contributions from the Cushman laboratory for foraminiferal research. 4(1): 13-21.