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. 2019 Feb 25;14(2):e0212643. doi: 10.1371/journal.pone.0212643

Table 3. Shizitan 29, layer 8 and 7 (base): The reduction sequence.

Cores Stage A Stage B Stage C Stage D
Layer 8 7 Base 8 7 Base 8 7 Base 8 7 Base
BF 0 2 1 3 1 1 7 2 17
RF 0 0 0 0 0 0 0 1 1
Q 0 1 0 1 1 0 2 1 6
O 0 0 1 0 0 0 1 1 3
0 3 2 4 2 1 10 5 27
Flakes Stage A Stage B Stage C Stage D
Layer 8 7 Base 8 7 Base 8 7 Base 8 7 Base
BF 9 4 6 3 12 8 7 5 54
RF 8 1 2 1 0 2 2 1 17
Q 1 4 0 5 10 11 4 2 37
O 0 0 0 0 0 1 0 0 1
18 9 8 9 22 22 13 8 109

Attributed reduction stages of flakes and cores from Shizitan 29, layers 8 and 7 Base according to raw materials: (BF) Black flint; (RF) River flint; (Q) quartz/quartzite; (O) other materials.