 |
TIMELINE | Orosirian |
 |
 |
 |
| Period | Timespan | |
| Orosirian | 2,050,000,000 to 1,800,000,000 years ago | |
|
|
TIMELINE | Orosirian |
|
|
|
|
| Period | Timespan | |
| Orosirian | 2,050,000,000 to 1,800,000,000 years ago | |