Lithic technology, chronology, and marine shells from Wadi Aghar, southern Jordan, and Initial Upper Paleolithic behaviors in the southern inland Levant

Cultural Dynamics in the Levantine Upper Paleolithic, ca. 40-33 ky BP: Insights Based on Recent Advances in the Study of the Levantine Aurignacian, the Arkov-Divshon, and the Atlitian

The chrono-cultural sequence of the Levantine Upper Paleolithic went through several major revisions during approximately a century of focused research, each revision contributing to shedding light on the mosaic of cultural entities and the complex social and cultural dynamics composing the Levantine Upper Paleolithic. The current state of research suggests the co-inhabitance of two cultural groups: the Early Ahmarian and the Levantine Aurignacian. Two other cultural entities, the Arkov-Divshon and the Atlitian, are regarded as younger manifestations and were tentatively suggested to relate to the Levantine Aurignacian. This paper presents a research synthesis of two case studies: Manot Cave, located in western Galilee, Israel, and Nahal Rahaf 2 Rockshelter in the Judean Desert. The application of high-resolution excavation methods, alongside detailed documentation of the stratigraphy and site-formation processes and wide-scale radiocarbon-based absolute dating, marked these sites as ideal for chrono-cultural study through the analyses of flint industries. The results indicate a clear distinction between the Levantine Aurignacian and the Arkov-Divshon/Atlitian industries and a chronological overlap between the Arkov-Divshon, Levantine Aurignacian, and possibly with the Early Ahmarian. Subsequently, we suggest another revision of the currently accepted chrono-cultural model: not two, but at least three cultural entities co-inhabited the Levant at ca. 40-30 ky cal BP. This study further suggests an evolvement of the Atlitian flint industries from the Arkov-Divshon and stresses the foreign cultural features of the Levantine Aurignacian. These results were used to construct an updated model of migration and possible interaction patterns.

Delayed increase in stone tool cutting-edge productivity at the Middle-Upper Paleolithic transition in southern Jordan

Although the lithic cutting-edge productivity has long been recognized as a quantifiable aspect of prehistoric human technological evolution, there remains uncertainty how the productivity changed during the Middle-to-Upper Paleolithic transition. Here we present the cutting-edge productivity of eight lithic assemblages in the eastern Mediterranean region that represent a chrono-cultural sequence including the Late Middle Paleolithic, Initial Upper Paleolithic, the Early Upper Paleolithic, and the Epipaleolithic. The results show that a major increase in the cutting-edge productivity does not coincide with the conventional Middle-Upper Paleolithic boundary characterized by the increase in blades in the Initial Upper Paleolithic, but it occurs later in association with the development of bladelet technology in the Early Upper Paleolithic. Given increasing discussions on the complexity of Middle-Upper Paleolithic cultural changes, it may be fruitful to have a long-term perspective and employ consistent criteria for diachronic comparisons to make objective assessment of how cultural changes proceeded across conventional chrono-cultural boundaries.

The absolute chronology of Boker Tachtit (Israel) and implications for the Middle to Upper Paleolithic transition in the Levant

The Initial Upper Paleolithic (IUP) is a crucial lithic assemblage type in the archaeology of southwest Asia because it marks a dramatic shift in hominin populations accompanied by technological changes in material culture. This phase is conventionally divided into two chronocultural phases based on the Boker Tachtit site, central Negev, Israel. While lithic technologies at Boker Tachtit are well defined, showing continuity from one phase to another, the absolute chronology is poorly resolved because the radiocarbon method used had a large uncertainty. Nevertheless, Boker Tachtit is considered to be the origin of the succeeding Early Upper Paleolithic Ahmarian tradition that dates in the Negev to ∼42,000 y ago (42 ka). Here, we provide ¹⁴C and optically stimulated luminescence dates obtained from a recent excavation of Boker Tachtit. The new dates show that the early phase at Boker Tachtit, the Emirian, dates to 50 through 49 ka, while the late phase dates to 47.3 ka and ends by 44.3 ka. These results show that the IUP started in the Levant during the final stages of the Late Middle Paleolithic some 50,000 y ago. The later IUP phase in the Negev chronologically overlaps with the Early Upper Paleolithic Ahmarian of the Mediterranean woodland region between 47 and 44 ka. We conclude that Boker Tachtit is the earliest manifestation of the IUP in Eurasia. The study shows that distinguishing the chronology of the IUP from the Late Middle Paleolithic, as well as from the Early Upper Paleolithic, is much more complex than previously thought.