Cushman, J. A. (1932). Rectogümbelina, a new genus from the Cretaceous. Contributions from the Cushman Laboratory for Foraminiferal Research. 8(1): 4-7.
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Cushman, J. A.
1932
Rectogümbelina, a new genus from the Cretaceous
Contributions from the Cushman Laboratory for Foraminiferal Research