World Register of Marine Species (WoRMS)
Pseudofavulina scalariformis (Williamson, 1848)
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Pseudofavulina scalariformis (Williamson, 1848). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1255377 on 2026-08-30
Williamson, W. C. (1848). On the Recent British species of the genus Lagena. Annals and Magazine of Natural History. (2) 1 (1): 1-20.