Riverine Shadows: Mesolithic Germany

The Mesolithic communities recorded at sites such as Bad Dürrenberg and Bottendorf (Saxony‑Anhalt), Urdhöhle (Thüringen), Drigge (Mecklenburg‑Vorpommern), and Gross Fredenwalde and Criewen (Brandenburg) occupy a liminal landscape of rivers, wetlands and early postglacial woodlands. Radiocarbon dates from the dataset span roughly 7593 to 4622 BCE, placing these people in the centuries after the Last Glacial Maximum when forests expanded across northern Central Europe. Archaeological remains — flint microliths, fish and waterfowl bones, and occasional hearth features — sketch a world oriented toward rivers and marshes, where mobility and seasonal use of resources structured life.

Limited evidence suggests continuity with earlier late Pleistocene hunter‑gatherers in technological and subsistence patterns, but the Mesolithic era is not monolithic: regional adaptations to rising forests, expanding wetlands, and shifting prey species are apparent. The sampled individuals come from multiple sites across modern German states, giving a geographic window onto postglacial settlement rather than a single, unified culture. Archaeological data indicates a reliance on small game, fish, and foraged plants, combined with specialized microlith toolkits suited to flexible, mobile lifeways. As landscapes and climates stabilized, these communities anchored themselves to riverine corridors that served as highways of movement and exchange.

Ancient DNA from 16 individuals across central Germany reveals a striking mitochondrial pattern: 13 of the 16 carry haplogroup U lineages, consistent with a widespread maternal legacy among European hunter‑gatherers. On the paternal side, Y‑chromosome calls include haplogroup I (4 individuals) and other less common assignments reported here as M (4), FGC (1), and P (1). These Y‑lineage counts indicate diversity in male lines, although some assignments may be provisional because ancient DNA preservation and low coverage can complicate precise subclade resolution.

At the population level, genomic affinities place these individuals within the broader Western Hunter‑Gatherer (WHG) genetic cluster that characterizes much of Mesolithic and early postglacial Europe. This fits with the dominance of mtDNA U and the presence of Y‑haplogroup I, both hallmarks of hunter‑gatherer ancestries in northern and western Europe. The presence of additional Y‑lineages suggests regional heterogeneity and possible north–south or east–west micro‑structures in male ancestry.

Because the sample size is moderate (16 individuals), observed patterns are informative but still preliminary for resolving fine‑grained demographic events. Archaeogenetic data indicates continuity of hunter‑gatherer ancestry into the mid‑5th millennium BCE in these riverine settings, even as Neolithic farmer ancestries spread elsewhere in Europe, pointing to complex local interactions and variable adoption of new lifeways.