World Register of Marine Species (WoRMS)
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Praeneodiscus longus (Grozdilova, 1956)&nbsp;&#8224;. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1292328 on 2026-08-30
Grozdilova, L.P. (1956): Милиолиды верхнеартинских отложений нижней перми западного склона Урала - Miliolids from the upper Artinskian deposits of the Lower Permian of the western slope of the Urals. Trudy VNIGRI, 98, Mikrofauna SSSR, 8, 521–529, Leningrad/St. Petersburg. (in Russian).