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Based on the quantitative analysis of some species of Globorotalia and Neogloboquadrina, we identified a series of bioevents at Site U1313 during the Pliocene and Pleistocene. These events were related with the color reflectance and magnetostratigraphic records obtained at the same site and correlated with the Lisiecki and Raymo (2005) global benthic oxygen isotope stack. A close comparison with biostratigraphic data obtained in astronomically dated sections from the Mediterranean demonstrates that most of these events were synchronous in the mid-latitudes of the North Atlantic and the Mediterranean and are very useful for chronostratigraphic correlations. Our study also shows that a high-resolution quantitative study is necessary to characterize and precisely locate these events.