Kinetics of stone tool production among novice and expert tool makers.
Erin Marie Williams-HatalaKevin G HatalaAlastair KeyChristopher J DunmoreMargaret KasperMcKenzie GordonTracy L KivellPublished in: American journal of physical anthropology (2020)
The similar and consistent emphasis of the thumb by both skill groups indicates the importance of this digit in stabilizing the hammerstone. The emphasis placed on digit II is exclusive to expert knappers, and so this digit may offer osteological signals diagnostic of habitual expert tool production.
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