none
Geological Time: Paleogene Oligocene
holotype
View of a specimen of Ceratobulimina washburnei Cushman & Schenck, 1928
The identification is based upon:
, : Cushman, J. A.; Schenck, H. G. (1928). Two foraminiferal faunules from the Oregon Tertiary. University of California publications, Bulletin of the Department of Geological Sciences. 17: 305-324. Plate , Fig.
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