World Register of Marine Species (WoRMS)
Sigmomorphina fenestrata Kuzina in Voloshinova et al., 1970
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Sigmomorphina fenestrata Kuzina in Voloshinova et al., 1970&nbsp;&#8224;. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1287160 on 2026-08-30
Voloshinova, N. A.; Kuznetsova, V. N.; Leonenko, L. S. (1970). Фораминиферы неогеновых отложений Сахалина - Foraminifera from the Neogene deposits of Sakhalin. Тру­ды ВНИГРИ - Proceedings of the Oil Research Geological Institut (VNIGRI). 284: 1-302.