EARTH SCIENCE |
Platte Canyon High
School |
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GEOLOGIC TIME SCALE Devonian after Harland et al., 1982 |
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Period | Epoch | Age | Ma age | Comments |
360 | ||||
Devonian | D3 | Famennian | 367 | |
Frasnian | 374 | |||
D2 | Givetian | 380 | ||
Eifelian | 387 | |||
D1 | Emsian | 394 | ||
Siegenian | 401 | |||
Gedinnian | 408 |