An estimator for bidirectional (naviform) blade productivity in the Near Eastern Pre-Pottery Neolithic B

A method is presented for calculating the blade productivity of bidirectional (naviform) blade cores, a hallmark of Near Eastern Pre-Pottery Neolithic B (PPNB) chipped stone tool assemblages. This approach involves estimating the volume of the core that furnished serial blades, together with the mean volume of a typical targeted blade blank. Simple computation of the volume of a wedge in both instances provides an estimate of the number of targeted blades that were produced in an average single reduction sequence. The method is checked against two replicated bidirectional blade reduction sequences, and a refitted bidirectional blade core from the site of Kfar HaHoresh, Israel. Finally, a case study from Kfar HaHoresh is presented in order to illustrate the application of the method, which may have ramifications concerning the evaluation of incipient craft specialization in the region.     

Foraging,Farming, and Social Complexity in the Pre-Pottery Neolithic of the Southern Levant: A Review and Synthesis

The transition from foraging to farming of the Neolithic periods is one of, if not, the most important cultural processes in recent human prehistory. Integrating previously published archaeological materials with archaeological research conducted since 1980, the first half of this essay synthesizes our current understanding of archaeological data for the Pre-Pottery Neolithic period (ca. 11,700–ca. 8400 B.P.) of the southern Levant, generally defined as including southern Syria and Lebanon, Israel, the Palestinian Autonomous Authority, Jordan, and the Sinai peninsula of Egypt. The second half of the essay explores how these data inform archaeologists about the processes by which social differentiation emerged, the nature of regional and interregional connections, and the mechanisms and processes by which the transition from foraging to food production first occurred in the Neolithic.