found in the North Atlantic
unknown none
Geological Time: Quaternary Holocene recent
the drawings are published in the book cited below, author and collection:
View of a specimen of Cycloforina collumnosa Cushman, 1922
The identification is based upon:
Cushman, J., A., 1929: The Foraminifera of the Atlantic Ocean. Part 6. Miliolidae, Ophthalmidiidae and Fischerinidae. Smithsonian Institution United States National Museum Bulletin 104. Plate 3, Fig. 2
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