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Published on: 7/1/2009
Last Visited: 7/2/2009
The pieces of 38 million-year-old jawbones and teeth found near Bagan in central Myanmar in 2005 show typical characteristics of primates, said Dr. Chris Beard, a paleontologist at the Carnegie Museum of Natural History in Pittsburgh and a member of the team that found the fossils.
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Beard and his team from France, Thailand and Myanmar concluded that the fossils - which they dubbed Ganlea megacanina - came from 10 to 15 individuals of a new species that belonged to an extinct family of Asian anthropoid primates known as Amphipithecidae.
Wear and tear found on the canine teeth suggest the tree-dwelling, monkey-like creatures with long tails used their teeth to crack open tropical fruit to get to the pulp and seeds - behavior similar to modern South American saki monkeys that inhabit the Amazon basin, Beard said.
"Not only does Ganlea look like an anthropoid, but it was acting like an anthropoid 38 million years ago by having this feeding ecology that was quite specialized," Beard said.
His team determined that the fossil was 38 million years old, making it several million years older than any anthropoid found in Africa and the second-oldest discovered in Asia.
In 1994, Beard and his Chinese colleagues found fossilized foot bones of the anthropoid Eosimias - one of the worlds smallest primates - which lived between 40 million and 45 million years ago and roamed ancient rain forest on the eastern coast of China.
Beard said the age of both fossils was the evidence he needed to challenge contentions that anthropoid primates had evolved in Africa, where Lucy, a 3.2 million-year-old fossil, was discovered in 1974.
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Beard isn't letting the criticism slow him down.
He and his team expect to return in November to Myanmar to continue searching for more fossils and exploring how anthropoids evolved in Asia and then migrated to Africa.