A 35,000-Year-Old Lineage Vanished From Europe, Then Came Back 15,000 Years Later
Genomes from 51 Ice Age Europeans revealed a population history far more turbulent than expected — including a lineage that disappeared during the glacial maximum and reappeared millennia afterwards.
Someone walked into a cave in what is now Belgium about 35,000 years ago and left descendants. Their lineage then disappears from the genetic record for roughly fifteen thousand years — and reappears.
For most of the twentieth century, Ice Age Europe was reconstructed from stone tools and cave art. Then researchers sequenced 51 Eurasians who lived between 45,000 and 7,000 years ago, and found a history no artefact sequence had predicted (Fu et al., Nature, 2016, PMID: 27135931).
The lineage that came back
The headline finding is strange enough to be worth stating carefully.
A genetic lineage present in Europe around 35,000 years ago appears to vanish from the record — and then reappears roughly 15,000 years later, in individuals from the same broad region, after the worst of the Last Glacial Maximum had passed.
The most economical explanation is that it never disappeared. It survived somewhere the sampling did not reach — a refuge population, isolated during the coldest millennia, that expanded again when conditions allowed.
Absence of evidence, in ancient DNA, is very often evidence of absent excavations.
Europe was already being repopulated repeatedly
The study also documented an influx of ancestry related to populations from the Near East beginning around 14,000 years ago, well before farming arrived. The picture that emerges is of a continent whose hunter-gatherers were not a stable substrate waiting for agriculture, but were themselves turning over, mixing and being replaced.
By the end of the Paleolithic, the people living in Europe were not simply the descendants of the people who had painted Chauvet.
What this means for a Paleolithic ancestry result
Two honest caveats belong with any test covering this period.
The samples are few and unevenly spread. Fifty-one genomes across 38,000 years and a continent is remarkable science and a thin basis for fine-grained personal inference. Coverage is far better for some regions and periods than others.
Everyone alive has Paleolithic ancestry. The question a test can address is not whether you descend from these populations but how much of your genome resembles the specific individuals who have been sequenced — which depends heavily on which ones those are.
The tests
The Paleolithic Age DNA Test compares your genotype against ancient gene pools from this period; an advanced version resolves a larger set of reference populations.
Both draw on published ancient genomes aggregated in the Allen Ancient DNA Resource (Mallick et al., Scientific Data, 2024). As with every app on the platform, the result tells you where your genome would have been placed within that reference set — a similarity measurement, not a lineage certificate.