 |
TIMELINE | Ordovician |
 |
 |
 |
| Period | Timespan | |
| Ordovician | ||
| 488,300,000 to 443,700,000 years ago | ||
|
|
TIMELINE | Ordovician |
|
|
|
|
| Period | Timespan | |
| Ordovician | ||
| 488,300,000 to 443,700,000 years ago | ||