Krems‑Wachtberg Ancients

Beneath loess and riverine terraces outside the modern town of Krems, the Krems‑Wachtberg 1 context preserves human remains dated to roughly 29,200–28,600 BCE. Archaeological data indicates an Upper Paleolithic occupation that aligns chronologically with Gravettian horizons in Central Europe. The material landscape of this time was a cold, open mosaic of steppe and parkland where small, mobile hunter‑gatherer bands pursued large herbivores and exploited seasonal plant resources.

Genetically, the two sequenced individuals both carry Y‑chromosome haplogroup I and maternal lineages classified as U5*. These markers fit a broader pattern seen across European Paleolithic and Mesolithic samples, linking them to longstanding hunter‑gatherer ancestries on the continent. Limited evidence suggests continuity of certain paternal and maternal lineages in Central Europe across millennia, but with only two samples the spatial and temporal variability at Krems remains poorly constrained.

Archaeological inference must therefore be cautious: burial features, stratigraphic context, and associated artifacts inform a narrative of skilled adaptation to cold‑climate ecologies, but demographic and cultural dynamics require larger sample sizes to resolve.

Ancient DNA from two individuals at Krems‑Wachtberg yields a concise but meaningful genetic portrait: both males carry Y‑DNA haplogroup I, and both mitochondrial genomes fall within U5*. In broader Eurasian palaeogenomics, haplogroup I is strongly associated with European hunter‑gatherer populations, while U5 is one of the oldest maternal lineages known in Europe, often appearing in Upper Paleolithic and Mesolithic contexts.

These genetic assignments align the Krems samples with a continental tapestry of Pleistocene hunter‑gatherers, suggesting continuity of certain lineages in Central Europe through the Last Glacial Maximum and beyond. However, the sample count is very low (n = 2). With fewer than ten samples, population‑level inferences—such as frequency, diversity, or regional substructure—are preliminary. Future sequencing of additional burials and comparative analyses with contemporaneous sites will be necessary to test hypotheses about migrations, local persistence, or interactions with neighboring groups.

In short, the DNA points to deep European hunter‑gatherer ancestry at Krems, but the limited dataset mandates cautious interpretation.