Image of freshwater clam shell.
This extremely large freshwater clam shell was placed over the area of the heart of an adult male found in the Feature 86 grave pit, which dates to the Final Late Prehistoric period. The top natural layer of this shell was smoothed off, creating a polished pearly finish; a small hole through the shell may (or may not) have been drilled. The grave also included an engraved bird bone bead, shown here with a roll-out of the full design. Adapted from Ricklis 1994, Figure 8.23.
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