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Geological Time: Ordovician
holotype
View of a specimen of Bathysiphon exiguus Moreman, 1930
The identification is based upon:
, : Moreman, W. L. (1930). Arenaceous Foraminifera from Ordovician and Silurian limestones of Oklahoma. Journal of Paleontology. 4(1): 42-59. Plate , Fig.
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