While the headline of this Telegraph article ("Neanderthal Man 'never walked in northern Europe'") seems a bit of a non-sequitor, the text is still quite interesting:
Historians of the Stone Age fear that they will have to rip up their theories about Neanderthal Man after doubt has been cast on the carbon dating of skeletons by a leading German anthropologist.
It seems that a flamboyant German anthropologist got a bit, well, creative in his dating techniques:
Another apparent misdating involved an allegedly prehistoric skull discovered near Paderborn in 1976 and considered the oldest human remain ever found in the region. Prof von Zieten dated the skull at 27,400 years old. The latest research, however, indicates that it belonged to an elderly man who died around 1750.