Cushman, J. A. (1936). Some American Cretaceous species of Ellipsonodosaria and Chrysalogonium. Contribution to Laboratory for Foraminiferal Research. 12(3): 51-55.
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Cushman, J. A.
1936
Some American Cretaceous species of Ellipsonodosaria and Chrysalogonium.
Contribution to Laboratory for Foraminiferal Research