Human, chimpanzee, and macaque SIMS oxygen isotope data

The dataset contains 1217 near-weekly δ18O values sampled sequentially from the innermost enamel along the enamel-dentine junction of one modern human molar, five wild chimpanzee molars, and eleven captive rhesus macaque molars. All teeth were measured with SIMS (SHRIMP-SI, Canberra, Australia) and standardised to Durango. As discussed in the primary manuscript by Smith and colleagues, SIMS δ18O measurements of living and fossil primate enamel can provide a high-fidelity record for paleoseasonality reconstruction, including real-time seasonal rainfall patterns and reasonable estimates of δ18O values in drinking water.