Europe

Lower Paleolithic

On the basis of the very rich materials from the Somme Valley in the north of France and the Thames Valley in the south of England, two main Lower Paleolithic traditions have been recognized in western Europe. These are as follows: (1) bifacial-tool, or hand-ax, traditions (Abbevillian and Acheulean); and (2) flake-tool traditions (Clactonian and Levalloisian).

The type tools of the Abbevillian (formerly Chellean), which takes its name from the town of Abbeville, France, on the 45-meter (150-foot) terrace of the Somme Valley, consist of pointed, bifacial implements, or hand axes. Their forms vary, and the flaking is generally irregular; it is probable that they were manufactured either with a stone hammer or on a stone anvil. Associated with these types of hand axes, simple flake tools are found, but they lack definite form. The Abbevillian has been reported from deposits of lower Pleistocene (First Interglacial) age.

The Acheulean, which begins in the Second Interglacial and persists to the close of the Third Interglacial, covers by far the longest time span of any of the Paleolithic traditions found in western Europe. The type site is on the 30-meter (98-foot) terrace of the Somme Valley at St. Acheul, near Amiens, in northern France. Acheulean hand axes, which display a marked technological refinement over their Abbevillian precursors, were apparently made by employing a wooden or bone billet rather than the stone-on-stone technique. But, except at the very end of the Acheulean cycle of development, there is very little typological difference in the types of hand axes found in the various layers.

The Micoquian, or Final (Upper) Acheulean, is characterized by elongated hand axes that exhibit very straight and finely chipped edges, in marked contrast with the Lower Acheulean, in which ovate forms predominate. Flake tools occur in all Acheulean levels, the side scrapers being the predominant type. Many of these tools were made from trimming flakes produced during the process of hand-ax manufacture. In general, flake tools, including points with a triangular cross section, are found in greater quantities in Micoquian deposits than in the older horizons.

The evidence from Clacton-on-Sea, Essex, and Swanscombe, Kent, in the Thames Valley of southeastern England clearly shows that the main development of the Clactonian occurred during early Second Interglacial times. The type artifacts are flakes, although core tools—single-edged choppers and chopping tools—do in fact occur. The flakes, which have large, high-angle (greater than 90°), plain striking platforms, as well as prominent bulbs of percussion, were detached from roughly prepared, discoidal cores by the stone-hammer or stone-anvil technique. Actual retouching or secondary working of the edge is found in some instances, but for the most part it is rough, and edge chipping resulting from use is far more characteristic.

Named after a locality at Levallois, a suburb of Paris, the Levalloisian is primarily a flake tradition, although hand axes are found in certain of the Middle and Upper Levalloisian stages. It first appears in deposits of the late Second Interglacial in association with hand axes of Middle Acheulean type and persists into Fourth Glacial (Würm) times. It is characterized by a new and improved method of producing flakes, which previously had been obtained in a more or less haphazard manner. This involves the careful shaping of the core by the removal of centrally directed flakes, and the preparation of an extremity for the detachment of a symmetrical oval flake. Since unstruck cores of this type exhibit a plano-convex section suggesting the form of a tortoise, they are known as tortoise cores. On the striking platforms of typical levallois flakes, small vertical flake scars, called facets, may be observed, and the scars of the converging core-preparation flakes are present on the upper surface. The use of this technique resulted in the production not only of symmetrical flakes but also of larger ones in proportion to the size of the core. In the Middle and Upper Levalloisian a variation of this same basic technique was developed whereby it was possible to produce either triangular flakes (or points) or rectangular flakes (or flake blades) by modifying the method of core preparation.