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. 2015 Jul 10;10(7):e0131127. doi: 10.1371/journal.pone.0131127

Fig 4. Sibudu, Still Bay: Bifacial pieces and fragments of bifacial pieces.

Fig 4

1, 4–7, 9, 12–17: dolerite; 2, 3: hornfels; 8, 10, 11: quartzite. Layer, square, cat. number: (1) RGS, B6a, PV2; (2) RGS, B6a, 11; (3) RGS, B6a, 28; (4) RGS, C5d, L22; (5) RGS, C5a, L20; (6) RGS2, B5d, 16; (7) RGS2, B4b, L10; (8) PGS, C6c, P5; (9) RGS, B4a, L6; (10) RGS, B6a, 20; (11) RGS, B5c, 23; (12) RGS, B6a, 29; (13) RGS, B5b, 34; (14) HinRGS, B5a, 21; (15) RGS, B5c, 17; (16) RGS, C5c, L12; (17) PGS, C6c, P1.