Oxygen and Carbon isotope data from Globigerina bulloides from sediment core SHAK06-5K. Between 6 and 12 specimens of each species were measured with a Gas Bench II connected to a Delta V Plus isotope ratio mass spectrometer at the Stable Isotope Laboratory of Climate Geology, ETH Zurich. Calibration to the Vienna Pee Dee Belemnite (VPDB) scale was accomplished using two in‐house standards previously calibrated against the NBS‐18 and NBS‐19 international standards. The associated long‐term standard deviation is <0.07‰.

Measured at ETH Zurich.

Supplement to: Ausín, Blanca; Haghipour, Negar; Wacker, Lukas; Voelker, Antje H L; Hodell, David A; Magill, Clayton; Looser, Nathan; Bernasconi, Stefano M; Eglinton, Timothy Ian (2019): Radiocarbon Age Offsets Between Two Surface Dwelling Planktonic Foraminifera Species During Abrupt Climate Events in the SW Iberian Margin. Paleoceanography and Paleoclimatology, 34(1), 63-78