When the last ice sheets retreated, a broad low-lying plain known as Doggerland stretched between what is now Britain and continental Europe. Archaeological data indicates human activity in this drowned landscape as early as the 10th millennium BCE. The samples dated here (9113–6502 BCE) come from sediment and trench contexts recovered off the Dutch coast — Brown Bank, Sand Motor, Eurogeul near Rotterdam, Noordhinder trenches, and Maasvlakte-2 — and capture people who lived on dynamic shorelines of lakes, rivers and shallow seas.
These communities emerged from postglacial recolonization processes. Limited evidence suggests cultural affinities with broader northwestern Mesolithic traditions: mobile hunter-fisher-gatherers exploiting rich estuaries and tidal flats. Genetically, Mesolithic Europeans are broadly associated with Western Hunter-Gatherer ancestries; the Doggerland samples appear broadly consistent with this pattern but also show unexpected Y-lineage assignments (see Genetics). Sea-level rise progressively drowned their landscapes, preserving a fragmented archaeological footprint and making direct comparisons with inland Mesolithic sites challenging.
Because only eight individuals are sampled, interpretations about population origins remain provisional. Archaeological and paleoenvironmental work continues to refine the timing and routes by which these coastal groups colonized postglacial northwestern Europe.