This could be entitled, "The archaelogists got it wrong".
The cemetery is the one at Aveline's Hole in Somerset.
The surprise is that the people buried there are similar to MN farmers from central Europe.
"The Hole Story: Ancient DNA, stable isotope and radiocarbon analysis of human remains from the ‘Mesolithic’ cemetery at Aveline’s Hole
Tom Booth1, Selina Brace1, Zuzana Faltyskova2, Yoan Diekmann2, Linda Wilson3, Graham Mullan3, Rick Schulting4, Mark Thomas2, Ian Barnes1
1Natural History Museum, London, UK, 2University College London, London, UK, 3University of Bristol Spelaeological Society, Bristol, UK, 4University of Oxford, Oxford, UK
Aveline’s Hole Cave in the Mendip Hills, Somerset, England, which was originally excavated in 1860, is renowned as the earliest known cemetery in Britain. Up to 50 individuals were interred in the cave, although remains of only around 21 individuals have survived. Dozens of radiocarbon dates obtained from this assemblage are tightly clustered in the mid-late 9th Millennium BC, the Early Mesolithic. These tight dates suggest that whole bodies were interred over a relatively short period, after which the cave was sealed, perhaps deliberately.
Here we present whole genome data, as well as further stable isotope and radiocarbon dating results from the Aveline’s Hole human remains. Our results suggest that the assemblage includes remains which date to the early 4th Millennium BC, show dietary signals more consistent with a farming than a hunter-gatherer lifestyle and which have genetic affinities with European Middle Neolithic populations ultimately deriving from Anatolia. These results not only inform on the nature of the British Mesolithic-Neolithic transition, but also overturn the conventional archaeological narrative of this unique and important site."