Extended Data Fig. 1: Microtopographic surface measurements.
From: Ancient human DNA recovered from a Palaeolithic pendant
Boxplots of the four selected surface texture parameters Sa (arithmetical mean height), Vvv (void volume of the valleys), Spc (arithmetic mean peak curvature), and Spd (density of peaks) by treatment (EDTA = ethylenediaminetetraacetic acid, GuSCN = guanidine thiocyanate reagent, Phos. = sodium phosphate buffer supplemented with detergent, Bleach = sodium hypochlorite, water = distilled water; e = enamel, d = dentine).
