An undated handout photo obtained September 22, 2008, shows what Australian scientists say they had discovered - a reef that was under water 650 million years ago in an outback mountain range and could provide fresh insight into early life on earth. The University of Melbourne researchers said the find could reveal fossils of the earliest examples of primitive animal life and also help trace the pattern of global climate change. The reef is believed to have existed for between five and 10 million years during a period of tropical climate squeezed between two major ice age events, said researcher Jonathan Giddings.
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