Isotope composition of fossil chaetognath spines and conodonts from Poland, Spitsbergen and Sweden

This dataset contains oxygen isotope data from fossil chaetognath spines (Phakelodus) and conodonts (Cordylodus, Palmatolepis, Neospathodus) measured using an ion microprobe. Samples labelled with "Dur" refer to the calcium phosphate reference "Durango 3".