Brönnimann, P. (1954). Upper Cretaceous orbitoidal Foraminifera from Cuba. Part I. Sulcorbitoides n. gen. Contributions from the Cushman Foundation for Foraminiferal Research. 5(2): 55-61.
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Brönnimann, P.
1954
Upper Cretaceous orbitoidal Foraminifera from Cuba. Part I. Sulcorbitoides n. gen.
Contributions from the Cushman Foundation for Foraminiferal Research