Here we present Pliocene planktonic (three species) and benthic foraminiferal oxygen and carbon isotope ratios from IODP Site U1313 (hole A), recovered from the North Atlantic Ocean. Analyses were carried out at the Institute of Earth Sciences, Heidelberg University using a Thermo Fisher Scientific MAT 253plus mass spectrometer coupled to a Kiel IV carbonate preparation device. Measurements were performed on ~20–80 µg of test fragments. Results are reported relative to Vienna Pee Dee Belemnite (VPDB), calibrated using International Atomic Energy Agency (IAEA)-603.