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Revisiting the Middle and Upper Palaeolithic archaeology of Gruta do Caldeirão (Tomar, Portugal)

Fig 8

Quartzite cores from layers Jb-L.

1. P11-811, layer K. 2. P12-739, layer K (possibly also used or re-used as a hammerstone). 3. P11-831, layer L. 4. P11-796, layer K.

Fig 8

doi: https://doi.org/10.1371/journal.pone.0259089.g008