The last time there was an attempt to date the jaw bone was back in 1989. Since then technology has moved on and it has now helped unearth more accurate information.
The new investigation discovered that the bone was much older than believed. It was not 35,000-years-old but more like 41,000 or even 44,000-years-old.
According to this newly established date, Prof Thomas Higham of Oxford University said: "It means early humans must have co-existed with Neanderthals in this part of the world."
More information at the Mirror