 Evidence seems to indicate that Mal'ta is the most ancient known site in eastern Siberia; however, relative dating illustrates some irregularities.The use of flint flaking and the absence of pressure flaking used in the manufacture of tools, as well as the continued use of earlier forms of tools, seem to confirm the fact that the site belongs to the early Upper Paleolithic.Yet it lacks typical skreblos (large side scrapers) that are common in other Siberian Paleolithic sites.