Planktonic Foraminifera from the American Oligocene

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Science  14 Aug 1964:
Vol. 145, Issue 3633, pp. 702-705
DOI: 10.1126/science.145.3633.702


Planktonic foraminiferal assemblages from the Vicksburg group of the Gulf Coast region comprise species comparable with those found in the Oligocene of Tanganyika and northern Europe. The fauna is transitional between typical Upper Eocene and Miocene; its intermediate position is indicative of an Oligocene age.