Fig. 7
From: Presenting the Compendium Isotoporum Medii Aevi, a Multi-Isotope Database for Medieval Europe

Distribution of δ34S, δ15N, and δ13C measurements on bone collagen included in CIMA from terrestrial herbivores, freshwater fish, and marine fish that passed elemental quality criteria (atomic ratios of C:N, C:S, and N:S).