Mungo man was a human found in Australia that was 60,000 years old.
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Thorne saw these dates as a crushing blow to the out-of-Africa theorists. No matter what his opponents said, there wasn't enough time on their 120,000-year clock for Homo sapiens to leave Africa, dash up to China, evolve from rugged Africans into small-framed Asians, invent boats, sail to Australia, march to the interior, get sick, and die.
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The results were nothing less than remarkable: Among the 10 successful extractions was the world's oldest known human DNA— plucked from none other than Mungo Man. (No DNA was recovered from Mungo Lady, perhaps because she had been cremated.) Mungo Man also appeared to mock the findings of previous scientists: His mtDNA signature did not match anyone's, living or fossil, on Earth. There was no evidence that he was genetically related to ancient Africans.
This puts a big hole in the out of africa theory, as this mungo man has no genetic relation to the african humans.
Source:
http://discovermagazine.com/2002/aug/featafrica