World Register of Marine Species (WoRMS)
Rotalia (Turbinuline) tortuosa d'Orbigny, 1826
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Rotalia (Turbinuline) tortuosa d'Orbigny, 1826. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=955831 on 2026-08-30
Orbigny, A. D. d'. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. 7: 96-128 [96-120 by Férussac]; (2): 129-169, fold-out table; (3): 245-314, pls. 10-17 [this last part and its plates on Foraminifera only].