World Register of Marine Species (WoRMS)
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Cibicidina cushmani (Nuttall, 1930)&nbsp;&#8224;. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1539314 on 2026-08-30
Nuttall, W. L. F. (1930). Eocene foraminifera from Mexico. Journal of Paleontology. 4(3): 271-293.