Geological Time Scale Timeline
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GEOLOGICAL TIME SCALE
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Precambrian EraPaleozoic EraMesozoic EraCenozoic Era
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Cambrian PeriodOrdovician PeriodSilurian PeriodDevonian PeriodCarboniferous PeriodPermian PeriodTriassic PeriodJurassic PeriodCretaceous PeriodTertiary PeriodQuaternary Period
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4.6 billion years ago to 544 milion years ago544 million years ago505 million years ago438 million years ago408 million years ago360 million years ago286 million years ago245 million years ago208 million years ago144 million years ago66.4 million years ago1.8 mi;;ion years ago
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duration of 39 million yearsduration of 67 million yearsduration of 30 million yearsduration of 48 million yearsduration of 74 million yearsduration of 41 milion yearsduration of 37 million yearsduration of 64 million yearsduration of 78 million yearsduration of 65 million yearsduration of 1.8 million years ago to present
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