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Date: 2011-06-07 22:28:13 Geologic time scale Extinction Prehistoric life Proterozoic Reg Sprigg Ediacara biota Estaingia bilobata Ediacaran Emu Bay shale Trilobites Fossils Paleontology		Add to Reading List Source URL: www.gsa.org.au Download Document from Source Website File Size: 50,24 KB Share Document on Facebook

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