Simplified Phanerozoic time scale
| Cenozoic 65
|
Quaternary 1,64
|
0-1,64
|
|
|
Tertiary 63
|
1,64-65
|
|
|
Cretaceous 81
|
65-146
|
| Mesozoic 180
|
Jurassic 62
|
146-208
|
|
|
Triassic 37
|
208-245
|
|
|
Permian 45
|
245-290
|
|
|
Carboniferous 73
|
290-363
|
| Paleozoic 325
|
Devonian 46
|
363-409
|
|
|
Silurian 30
|
409-439
|
|
|
Ordovician 71
|
439-510
|
|
|
Cambrian 60
|
510-570
|
|
|