Abstract
The biological and cultural evolution of hominins in Asia is a central topic of paleoanthropology. Yet, the Paleolithic archaeology of key regions of Asia, including the Iranian plateau, have not been integrated into human evolutionary studies. Here, we examine the prehistory of the Iranian plateau with a focus on Iran, one of the largest and archaeologically best-known countries in the region. After approximately eight decades of professional fieldwork on the Paleolithic in Iran, a broad outline of the occupation history of the region has been achieved, though significant gaps remain in understanding the evolution and behavior of hominins in the region. Here we examine the history of Paleolithic investigations, synthesizing key archaeological information from the Lower Paleolithic to the EpiPaleolithic, placing emphasis on archaeological sites with stratified deposits and dated finds. We collect and summarize information on site locations, chronologies, rare hominin fossils, the more common lithic assemblages, and scarce worked items and symbolic objects. Our study documents considerable chronological and archaeological gaps in the Lower Paleolithic record, although Acheulean sites with characteristic lithics are present signaling the early colonization of the region by early hominin ancestors. The early Middle Paleolithic is poorly known owing to dating lacunae, although more abundant evidence is available from younger sites after 50,000 years ago (ka), spanning the late Middle Paleolithic, the Upper Paleolithic and the EpiPaleolithic. The fossil and archaeological evidence indicates the presence of Neanderthals in the Iranian plateau and later, Homo sapiens. The distribution of Lower to EpiPaleolithic sites are examined here, indicating both overlaps and divergences in the use of geographic areas, while pointing to large-scale research gaps in archaeological coverage. Key dispersal models are summarized, illustrating alternative views on the routes of human expansions in the Late Pleistocene, and how the Iranian plateau situates relative to the Levant, Arabia and Central Asia.
