Blombos bifacial points and fragments showing a variety of morphologies.

<p>(1–2) PVN 67 and PVN 72, levels PIP and CRE) phase 3 points with a broad base. (3) P 40, CB phase 1; (4) PVN 6, a refit (from layers CE and CD, phase 2b; (5) P68 CDB, phase 3 distal fragment; (6) Lateral fragment, CA 147, phase 3. (7) broken base, P53 CC phase 2a. (8) Tip flake CA 2076 phase 3. (9) Tip flake CA PVN 11 phase 2. (10) Lateral fragment with part of the tip, CD P67, phase 3. This twisted fracture is sometime called “perverse fracture” [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0131127#pone.0131127.ref027" target="_blank">27</a>]. Scale bars = 1 cm.</p>