Behavioral inferences from Early Stone artifact assemblages: an experimental model☆

Abstract A methodological approach for assessing the nature and palaeographic distribution of early stone artifact assemblages is presented, modeled after an approach originally used for faunal analysis. By combining experimental replicative studies with careful analysis of Palaeolithic archaeological occurrences, it is potentially possible to reconstruct entire technological systems and to assess what stages of lithic reduction may be preferentially represented at high density artifact concentrations that we normally call archaeological “sites”, and what stages of reduction are found in lower density (“off site”) scatters. Based upon the results of this approach, alternative explanations for certain stages of lithic reduction being preferentially represented at a number of Plio-Pleistocene archaeological sites at Koobi Fora, Kenya are considered and evaluated with regard to early hominid organizational patterns. It appears that hominid stone technology was a relatively complex system by 1·9 to 1·4 million years B.P., involving significant transport and carrying of stone artifacts representing various stages of reduction and suggesting more foresight and planning than observed among extant nonhuman primates. The application of this approach to other Palaeolithic occurrences should enable anthropologists to obtain a better understanding of the organizational patterns of tool-making hominids throughout the course of human evolution.