Aspartic Acid Racemization and Radiocarbon Dating of an Early Milling Stone Horizon Burial in California

Abstract
Concordant radiocarbon and aspartic acid racemization dates have been obtained for several Holocene aboriginal skeletons from coastal southern California sites. These results further demonstrate the reliability of racemization dating. One of the skeletons (SDM 16709), dated at 8,300 years, was a burial around which several milling stones had been placed. This well-dated burial indicates that the Southern California Milling Stone horizon is significantly older than has previously been accepted.

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