Add to ORKGThe first expedition by the Algerian-French project aimed at establishing the age of Saharan rock art travelled to Sefar. It was able not only to discover a large number of new paintings attributable to the "Roundhead" style, but also to make some observations about the environment of these works of art, and in particular about some major changes in ground level. Traces of the ancient floors on which the artists walked were found. Analyses are now being carried out in order to date these floors, which should make it possible to specify the period when the paintings were made.Les premières missions du projet algéro-français de datation des images rupestres sahariennes se sont déroulées à Séfar. Elles ont permis la découverte d'un grand nombr...