Data for: Coupled isotopic evidence for elevated pCO2 and nitrogen limitation across the Santonian-Campanian transition

Table S1: Chemostratigraphic data from the YN–2 cutting, ZK–1 core, and Yaojia Station outcrop samples. Table S2: Rock Eval measurements of the cutting samples from the YN–2 core in the Yaojia and Nenjiang formations. Tmax = the temperature at which the S2 peak, HI = hydrocarbon index.