24.0 kyr cal BP stone artefact from Vale da Pedra Furada, Piauí, Brazil: Techno-functional analysis
Fig 5
General artefacts of the C7γ-a layer.
(a) bec-type cutting-edge on split flake from quartz pebble, (b) bifacial symmetrical convergence type cutting-edge on quartz pebble, (c) end scraper-type cutting-edge on unipolar quartz flake, (d, h) simple bevel-type cutting-edge on quartz pebble, (e) side scraper with inverse retouch on quartz pebble flake, (f) bec-type cutting-edge on quartz pebble flake, (g) unifacial asymmetric convergence type cutting-edge on quartz pebble.