Data for: Ecological Globalisation, Serial Depletion and the Medieval Trade of Walrus Rostra

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Supplementary files for the paper "Ecological Globalisation, Serial Depletion and the Medieval Trade of Walrus Rostra" by James H. Barrett, Sanne Boessenkool, Catherine J. Kneale, Tamsin C. O’Connell and Bastiaan Star: Supplementary Data 1. Catalogue of European finds of medieval walrus rostra. Supplementary Data 2. Sex determination (by aDNA and/or tusk socket measurement) and stable isotope data for walrus rostra and control specimens. Supplementary Data 3. Measurements of walrus tusk sockets used to estimate maximum internal cross section from minimum internal cross section. Supplementary Figure 1. The distribution of two evolutionarily distinct walrus clades in the northern Atlantic.

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