The microburin technique is a special procedure for cutting up lithic blades which yields fragments that can be used in the manufacture of utensils. The usable fragments are basically geometric microliths. This technique has been recorded through the Old World, from at least the Mesolithic. It has also been recorded from the later phases of the Upper Paleolithic, as triangular and trapeze shaped microliths have been found from the end of the French Magdalenian although they are very rare. The microburin blow technique has not been found, at present, in the New World.The technique consists of taking a blade (a flake can also be used) and placing its upper end against a support with a sharp edge (as occurs in the use of an anvil). A notch is then made and enlarged using light blows or by pre