World Register of Marine Species (WoRMS)
Virgulina californiensis var. grandis Cushman & Kleinpell, 1934
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Virgulina californiensis var. grandis Cushman & Kleinpell, 1934&nbsp;&#8224;. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=927786 on 2026-08-25
Cushman, J. A.; Kleinpell, R. M. (1934). New and unrecorded Foraminifera from the California Miocene. Contributions from the Cushman laboratory for foraminiferal research. 10(1): 1-23.