Look at the geologic time chart below and memorize the names and important dates.
| Eon | Era | Period | Epoch | Date (millions of years before present) |
|
|---|---|---|---|---|---|
| Phanerozoic | Cenozoic | Quaternary | Holocene | ||
| Pleistocene | |||||
| Tertiary | Pliocene | ||||
| Miocene | |||||
| Oligocene | |||||
| Eocene | |||||
| Paleocene | |||||
| Mesozoic | Cretaceous | End of the Mesozoic 66 | |||
| Jurassic | |||||
| Triassic | |||||
| Paleozoic | Permian | End of Paleozoic 245 | |||
| Carboniferous | Pennsylvanian | ||||
| Mississippian | |||||
| Devonian | |||||
| Silurian | |||||
| Ordovician | |||||
| Cambrian | |||||
| Proterozoic | Precambrian (informal name) |
Vendian (or Ediacaran) | End of Precambrian 544 | ||
| Archean | |||||
| Hadean | |||||