Domed cores on blocks with flat based striking platforms, heavily step-flaked around their marigins. Both very large and smaller varieties are found commonly on Pleistocene sites in most areas of Australia and on some mid-HoLOCENE sites. It used to be believed that the step-flaked edges resulted from heavy chopping, planing or scraping, but it is now also considered possible that the stepflaking could have resulted from repeated striking to remove flakes.
The Macmillan dictionary of archaeology, Ruth D. Whitehouse, 1983Copied