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We performed a quantitative study of some planktonic foraminifer species from Integrated Ocean Drilling Program Site U1313 to define main biostratigraphic events. Some of these events were characterized by large changes in species abundance rather than their first or last occurrences. Changes in relative abundances of planktonic foraminifers were compared to the color reflectance and magnetostratigraphic records measured at this site. We obtained astronomical ages for all these events through calibration to the isotope timescale. Comparison of these ages with the astronomical dates derived from the Mediterranean indicates that most of the events were synchronous in the mid-latitudes of the North Atlantic and the Mediterranean.

Data report: Pliocene-Pleistocene planktonic foraminifer bioevents at IODP Site U1313