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Distal (Left) and lateral (Right) views of fossil hominin and modern human lateral MT (MT2–MT5) heads. Note that Homo sapiens is characterized by dorsal overlap of the distal articular surface onto the MT shaft and by wide flattening of the dorsal articular surface. Note epicondylar surface landmarks were removed for MT3 analyses to include Ar. ramidus (ARA-VP-6/505) into the analysis. (Scale bar: 1 cm.) P. troglodytes, Pan troglodytes.
