none
Geological Time: Quaternary Pleistocene
holotype
View of a specimen of Cassidulina quadrata Cushman & Hughes, 1925
The identification is based upon:
, : Cushman, J. A.; Hughes, D. D. (1925). Some Later Tertiary Cassidulinas of California. Contributions from the Cushman Laboratory for Foraminiferal Research. 1: 11-17. Plate , Fig.