The earliest evidence for anatomically modern humans in northwestern Europe

Early arrivals in Europe Anatomically modern humans are thought to have arrived in Europe 44,000–42,000 years ago. Physical evidence for early humans is scarce, and these dates are based largely on studies of stone tool assemblages. Two papers published this week use the latest radiocarbon dating and morphological analysis techniques to reassess museum hominid samples. Higham et al . examine a human maxilla from the Aurignacian site at Kent's Cavern in the United Kingdom, discovered in 1927 and previously dated at around 35,000 years old, and arrive at an age of 44,200–41,500 years. The dental morphology of the jawbone indicates that its attribution as early human, rather than Neanderthal, is reliable. Benazzi et al . reanalyse two teeth from the Uluzzian site Grotta del Cavallo in southern Italy and conclude that they are definitively modern, not Neanderthal, and date to 45,000–43,000 years old. A further conclusion from this work is that the Uluzzian culture of southern Europe — always found stratigraphically below the Aurignacian signature culture of the modern humans — may represent the earliest modern humans in Europe rather than the last Neanderthals. The earliest anatomically modern humans in Europe are thought to have appeared around 43,000–42,000 calendar years before present (43–42 kyr cal bp ), by association with Aurignacian sites and lithic assemblages assumed to have been made by modern humans rather than by Neanderthals. However, the actual physical evidence for modern humans is extremely rare, and direct dates reach no farther back than about 41–39 kyr cal bp , leaving a gap. Here we show, using stratigraphic, chronological and archaeological data, that a fragment of human maxilla from the Kent’s Cavern site, UK, dates to the earlier period. The maxilla (KC4), which was excavated in 1927, was initially diagnosed as Upper Palaeolithic modern human 1 . In 1989, it was directly radiocarbon dated by accelerator mass spectrometry to 36.4–34.7 kyr cal bp 2 . Using a Bayesian analysis of new ultrafiltered bone collagen dates in an ordered stratigraphic sequence at the site, we show that this date is a considerable underestimate. Instead, KC4 dates to 44.2–41.5 kyr cal bp . This makes it older than any other equivalently dated modern human specimen and directly contemporary with the latest European Neanderthals, thus making its taxonomic attribution crucial. We also show that in 13 dental traits KC4 possesses modern human rather than Neanderthal ch