Extended Data Fig. 1: Cenozoic foraminifer-bound nitrogen isotope and nitrogen content data compilation, with sites and taxa indicated. | Nature

Extended Data Fig. 1: Cenozoic foraminifer-bound nitrogen isotope and nitrogen content data compilation, with sites and taxa indicated.

From: Enhanced ocean oxygenation during Cenozoic warm periods

Extended Data Fig. 1

Foraminifer-bound N content (a) and FB-δ15N (b) for species-specific analyses in DSDP Site 516, ODP Site 872 and ODP Site 1211, complemented by data from mixed taxa and specific genera by Kast et al.18 for ODP Sites 1263 and 1209. Our compilation is of putatively symbiotic taxa or coarse fractions dominated by symbiotic taxa, avoiding the need to correct for the typical offset between symbiotic and symbiont-barren species19,89. Cross-plots between δ15N and N content show no correlation.

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