Research of the Middle Paleolithic complexes from Chagyrskaya cave in 2017

Chagyrskaya Cave is a key site of the Sibiryachikha Facies of the Middle Paleolithic in the Altai Mountains. Field research at the site was continued in 2017. New and numerous assemblages of stone artifacts as well as paleontological and paleoanthropological materials were obtained in the culture-bearing layers of the cave, and new data on stratigraphy, sedimentology, and planigraphy of the Chagyrskaya Cave was obtained. The genesis of the culturally sterile layers and cultural-bearing layers was preliminary identified. New geological data concerning the lower cultural layers is supported by new spatial data. Numerous bone tools, such as retouchers, pressure tools, and billets are the unique finds for the regional Middle Paleolithic.