Programme des sessions > Recherche par auteur correspondant > Sanchez-Dehesa Galan Sol

The south-west part of the Turkana Basin remains one of the least explored areas in terms of Pleistocene archaeology. Marked by intense erosional processes, the region exhibits a complex geological history that directly impacts the preservation and visibility of Early and Middle Pleistocene archaeological records.

In this context, recent surveys conducted by the TRANS-EVOL team have led to the identification of two significant archaeological localities: Kanimangin and Kamilikol, situated 9 km apart. Despite their proximity, these sites present markedly different lithic assemblages and depositional contexts.

Kanimangin is characterized by an extensive surface scatter of lithic artifacts ranging from the Lower Paleolithic to the Later Stone Age. Although some elements are well-preserved—with instances of refitting—test excavations yielded mostly sterile results, suggesting extensive erosion of the original deposits. An exception is Trench AT4, which revealed approximately 62 lithic artifacts within sandy sediments and reddish-brown pockets surrounded by sandstone fragments. Faunal remains, primarily recovered from the surface but occasionally in situ, include aquatic and terrestrial taxa such as Loxodonta adaurora, Palaeoloxodon recki, Panthera sp., Hyaena hyaena, Canis sp. Orycteropus afer, Equus grevyi, Kolpochoerus heseloni, Phacachoerus aethiopicus, Hippopotamus spp. Ourebia ourebi, Syncerus caffer, Aepyceros melampus, Alcelaphus buselaphus, and various reptiles, fish, and amphibians.

In contrast, Kamilikol—located southwest of Kanimangin—presents a dense concentration of handaxes and cleavers, constituting the first major accumulation of large cutting tools recorded in the western part of the basin. Hammerstones, shaping flakes, and evidence of core and flake production have also been documented, consistent with an Acheulean occupation and suggesting a relatively constrained chronological span, with no indication of earlier or later components. Preliminary excavations confirm a stratified context originated from successive debris flows. Most faunal specimens were recovered from the surface and include both aquatic and terrestrial taxa—such as such as Equus sp., Hippopotamus sp.,Alcelaphalus sp., and various reptiles and fish, —without signs of anthropic modification.

This paper presents a comparative analysis of both sites to examine formation processes and assess their relevance to Early and Middle Pleistocene human occupation in the south-west part of the Turkana Basin.