Cushman, J. A.; Ellisor, A. C. (1939). New species of Foraminifera from the Oligocene and Miocene. Contributions from the Cushman laboratory for foraminiferal research. 15(1): 1-14.
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Cushman, J. A.; Ellisor, A. C.
1939
New species of Foraminifera from the Oligocene and Miocene.
Contributions from the Cushman laboratory for foraminiferal research