Geologic Time Scale

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Can you name the Geologic Time Scale?

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Score 0/19 Timer 10:00
NumberPeriodInfo
2
4b
4bii
4aiii
4aii
4c
4av
4a
3
4ciii
NumberPeriodInfo
4aiv
4avi
4bi
4ai
1
4cii
4ci
4biii
4

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