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. Author manuscript; available in PMC: 2020 Jul 14.
Published in final edited form as: Nature. 2019 Jul 15;572(7767):112–115. doi: 10.1038/s41586-019-1370-5

Extended data Figure 7 -. LA-ICPMS trace element mapping of modern humans:

Extended data Figure 7 -

The 7Li/43Ca, 88Sr/43Ca and 138Ba/43Ca for each modern human specimen (Homo sapiens) HT01 (UM1), HT02 (LM1) and HT03 (UM1) (left to right respectively). The distribution pattern of all three elements is notably different to the signal observed in A. africanus, with an enrichment towards the pulp cavity for both 88Sr/43Ca and 138Ba/43Ca, likely associated with blood flow. An important difference is the absence of a repeated pattern observable for all three elemental ratios. While some features could be interpreted as banding, such as the 88Sr/43Ca root signal of HT03, the isolated pattern is not mirrored in the other elemental distribution.