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10/19/11 Wood is older than previously thought. The discovery of 400 million year old fossils containing traces of wood has pushed back its emergence by some 10 million years. 
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© 2007 ULi�ge
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10/19/11 Wood is older than previously thought. The discovery of 400 million year old fossils containing traces of wood has pushed back its emergence by some 10 million years.
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© 2007 ULi�ge
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