First issued in release COL21.6.
Last used in release COL23
Published in
Cushman, J. A., & Todd, R. (1944). The Genus Spiroloculina and Its Species. Cushman Laboratory for Foraminiferal Research Special Publication, 11: 1–82. https://www.marinespecies.org/foraminifera/aphia.php?p=sourcedetails&id=258899