| ERA | PERIOD | EPOCH | Millions of Years Ago | Tectonic Events in Arizona |
| Cenozoic | Quaternary | Holocene
Pleistocene |
0.02
1.8 5
275
|
|
| Tertiary | Pliocene
Miocene Oligocene Eocene Paleocene |
Basin and Range Crustal
Extension and Volcanism Mid-Tertiary Orogeny |
||
| Mesozoic | Cretaceous
Jurassic Triassic |
Laramide Orogeny
Marine Transgression Plutonism and Volcanism |
||
| Paleozoic | Permian
Pennsylvanian Mississippian Devonian Silurian Ordivician Cambrian |
Several Marine Regessions
and Transgressions Regional Uplift and
|
||
| Precambrian |
|
Mazatzal Orogeny and Plutonism |