World Register of Marine Species (WoRMS)
Truncatulina americana var. antiqua Cushman & Applin, 1926
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Truncatulina americana var. antiqua Cushman & Applin, 1926&nbsp;&#8224;. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=927329 on 2026-08-01
J. A. Cushman, E. R. Applin. (1926). Texas Jackson Foraminifera. AAPG Bulletin. 10 (2): 154–189.