Old Stone Age

Pech de l'Azé IV - Layers F1-F4

Levallois production drops considerably in these levels and is at its lowest for the entire sequence. Typologically, the F levels look somewhat like the J3a-c levels, except for the bifaces in the former and the elevated numbers of truncated-faceted pieces in the latter. Interestingly, there is a clear and steady increase in Upper Paleolithic types (especially backed knives). This is perhaps significant given that the MTA-B is considered by some to be transitional to the Châtelperronian. There does not seem to be a concomitant increase in blade technology.