World Register of Marine Species (WoRMS)
Sigmesalia H. J. Finlay & Marwick, 1937
MolluscaBase eds. (2026). MolluscaBase. Sigmesalia H. J. Finlay & Marwick, 1937&nbsp;&#8224;. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1315400 on 2026-08-30
Finlay, H. J. & Marwick, J. (1937). The Wangaloan and associated molluscan faunas of Kaitangata-Green Island subdivision. New Zealand Geological Survey Palæontological Bulletin. 15, 1–140, 18 pls.