Cushman, J. A.; Bermúdez, P. J. (1936). The foraminiferal genus Amphimorphiva in the Eocene of Cuba. Contributions from the Cushman laboratory for foraminiferal research. 12(1): 1-3.
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Cushman, J. A.; Bermúdez, P. J.
1936
The foraminiferal genus Amphimorphiva in the Eocene of Cuba
Contributions from the Cushman laboratory for foraminiferal research