with terminal bevel" (biface à biseau terminal), while Bordes simply called them "cleavers" (hachereaux) The current term was proposed in French by Guichard in 1966 (biface-hachereau). The term biface-cleaver was proposed in Spanish in 1982 (bifaz-hendidor), with "biface" used as a noun referring to the typological group a piece belongs to due to its bifacial modelling and "cleaver" used as an adjective because of its morphology. Technically they are bifaces, but morphologically they are similar to cleavers, although their personality is completely distinct: The multi-use capability of a biface, including this type, conflicts with the technological simplicity of a cleaver, even though their morphology and function may be similar. Abbevillean style bifaces—This hand axe takes its name from the French municipality of Abbeville, where they were first found in a marl quarry in the valley of the River Somme. They were initially associated with Abbevillean culture, for which they are an index fossil (although paradoxically these hand axes are particularly scarce at the Abbeville site). The Abbevillean is an initial archaic phase of the Archulean, even if it does not always appear in the stratigraphic register. Archaic hand axes such as those from Abbeville can be found throughout the Lower Palaeolithic, without this suggesting any chronological or cultural reference, supporting the term Abbevillean style biface. These hand axes were worked using only a hard hammer, without retouching, leaving them sinuous. They are asymmetrical, varied and irregular, with their shape generally determined by the stone's own shape. Their base is covered by cortex along with large areas of the sides. They tend to be relatively thick. Partial bifaces: These are without knapping affecting more than a small part of the core. They were created with only a few blows, although this depends on the correct core choice. They are often barely recognizable as chopping tools, but their general aspect and finishing qualifies them as bifaces. The extreme age of the industry to which they belong and the economy of effort serve to qualify them: Tools sometimes categorized as bifaces Hand axes constitute an important group artefacts from the Acheulean. They are particularly important in open air archaeological sites (Keelley suggested that they are less common in cave sites). Hand axes, chopping tools and trihedral picks are considered core utensils, which were commonly manufactured out of stones, blocks or rock nodules. However this grouping is problematic as these tools were often also