
| ERA | PERIOD / EPOCH | FOSSIL EXAMPLE |
|---|---|---|
| P A L E O Z O I C E R A 293 |
CAMBRIAN PERIOD | 570 million years ago
|
| ORDOVICIAN PERIOD | 500 million years ago
|
|
| SILURIAN PERIOD | 430 million years ago
|
|
| DEVONIAN PERIOD | 395 million years ago
|
|
| MISSISSIPPIAN PERIOD (CARBONIFEROUS PERIOD) |
345 million years ago
|
|
| PENNSYLVANIAN PERIOD (CARBONIFEROUS PERIOD) |
325 million years ago
|
|
| PERMIAN PERIOD | 280 million years ago
|
|
| M E S O Z O I C E R A 185 |
TRIASSIC PERIOD | 225 million years ago
|
| JURASSIC PERIOD | 190 million years ago
|
|
| CRETACEOUS PERIOD | 136 million years ago
|
|
| C E N O Z O I C E R A 65 |
PALEOCENE EPOCH | 65 million years ago
|
| EOCENE EPOCH | 54 million years ago
|
|
| OLIGOCENE EPOCH | 37.5 million years ago
|
|
| MIOCENE EPOCH | 26 million years ago
|
|
| PLIOCENE EPOCH | 5 million years ago
|
|
| PLEISTOCENE EPOCH | 1.8 million years ago
|
|
| HOLOCENE EPOCH | Last 2000 years
|
|
| ERA | PERIOD / EPOCH | FOSSIL EXAMPLE |
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