sentences:  Kostenki-1/2 (site Kostenki-1, layer 2), Kostenki-1/3, Kostenki-6 (Streletskaya), Kostenki-11 and Kostenki 12/3 below the volcanic CI tephra layer are associated to the nontransitional local "Strelets culture", analogous to early Upper Paleolithic cultures from central and western Europe such as the Szeletian culture.This initial cultural development might be attributable to local Neanderthals.Ornaments predating the volcanic eruption, found at Kostenki 17/2 ("Spitsyn culture", 38–32 ka), were apparently perforated by a hand-operated rotary drill or drills; these may suggest that the population was technologically capable of preparing for a volcanic winter.