Extended Data Fig. 10: Comparison of flakes from the upper (group A) and lower (group B) layers of the deposit (n = 204), with 117 pieces from the lower layers (dated to 170–160 ka) and 87 from the upper layer (dated to approximately 90–80 ka). | Nature

Extended Data Fig. 10: Comparison of flakes from the upper (group A) and lower (group B) layers of the deposit (n = 204), with 117 pieces from the lower layers (dated to 170–160 ka) and 87 from the upper layer (dated to approximately 90–80 ka).

From: Late Middle Pleistocene Levallois stone-tool technology in southwest China

Extended Data Fig. 10

a, Metric variables. Linear dimensions are measured in mm, mass in g. b, Technological variables. Centre lines show data median, boxes show first and third quartiles (the 25th and 75th percentiles), and the whiskers extend from the upper and lower hinge to the largest and smallest values no further than 1.5 times the interquartile range from the hinge. Data beyond the end of the whiskers are outlying points and are plotted individually.

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