Products of the Quina system at the Longtan site (IMAGE)
Caption
Products of the Quina system at the Longtan site. (A–D) Quina scrapers, illustrations provide details on the transverse layout of the tools. Note that the innermost order of retouching scars shows convex outlier shape, while the outer orders often show concave shape. Also note that the large removal on specimen C (Middle and Right pictures) indicates the “Clactonian notch.” (E–G) Quina cores, illustrations highlight the acute angle between intersecting flaking surfaces. (H–J) Resharpening flakes showing Quina retouch at the proximal end of the dorsal face. (K) Small tool made on resharpening flake.
Credit
Image by the research group.
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