Beneath loess and riverine terrace, the site of Krems-Wachtberg in Lower Austria preserves a snapshot of human presence in the Late Upper Paleolithic. Archaeological data indicates occupation layers and human remains dating between 29,200 and 28,600 BCE, placing these individuals in a cold, dynamic landscape shaped by glacial rhythms. The material culture found in the broader Krems-Wachtberg horizon—stone tools, hunting debris, and fragmented hearths—speaks to mobile hunter‑gatherer lifeways adapted to steppe and parkland ecotones along the Danube corridor.
Genetic traces from the two sampled individuals add a new dimension to this picture. Both carry Y‑chromosome lineages assigned to haplogroup I and mitochondrial lineages in the U5 family. Haplogroup I is frequently encountered in Palaeolithic and Mesolithic Europe, while U5 is among the earliest mitochondrial lineages associated with European hunter‑gatherers. These affinities hint at deep genetic continuity in parts of Central Europe, though the tiny sample size cautions against sweeping conclusions. Limited evidence suggests these people were part of wider networks of movement and contact across the Pannonian and Alpine forelands, intertwined with local adaptations that archaeology alone only partially reveals.