World Register of Marine Species (WoRMS)
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Truncatulina illingi Nuttall, 1928&nbsp;&#8224;. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=906345 on 2026-08-28
Nuttall, W. L. F. (1928). Tertiary Foraminifera from the Naparima Region of Trinidad (British West Indies). Quarterly Journal of the Geological Society. 84(1-4): 57-116.