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![]() Date: 2009-12-12 15:32:59Geologic time scale Geological history of Earth Prehistoric life Paleobiology Trace fossils Fortune Head Cambrian Ediacaran Global Boundary Stratotype Section and Point Historical geology Geology Paleontology | Source URL: www2.coloradocollege.eduDownload Document from Source WebsiteFile Size: 403,88 KBShare Document on Facebook |