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Geologic Time Scale notes…44
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Geologic Time Scale…44
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EON Largest group of the history of the Earth
First 3 eons = Precambrian time 4th eon is the Phanerozoic eon EON
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ERAS Eons divided into eras. Most recent eon is divided into three eras. -Paleozoic -Mesozoic -Cenozoic
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Paleozoic Era Beginning-ocean life End-reptiles, amphibians, ferns
Greatest extinction of all time
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Mesozoic Era Dinosaurs
Some mammals, birds, and flowering plants evolved Pangaea
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Cenozoic Era Current era Mammals!!!
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Geologic Time Scale Music Video
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