The Clactonian industry may have co-existed with the Acheulean industry (which used handaxes). However, in 2004 there was an excavation of a butchered Pleistocene elephant near Dartford, Kent. Archaeologists recovered numerous Clactonian flint tools, but no handaxes. Since handaxes would be more useful than choppers to dismember an elephant carcass, this is evidence of the Clactonian being a separate industry. Flint of sufficient quality was available in the area, so probably the people who carved up the elephant did not have the knowledge to make handaxes.