Stratigraphic time
| This age is part of | |
|---|---|
| Phanerozoic | 541 - recent |
| Paleozoic | 541 - 251.902 |
| Ordovician | 485.4 - 443.8 |
| Lower Ordovician | 485.4 - 470 |
| Number of records | |
|---|---|
| Taxa | 498 |
| This age is part of | |
|---|---|
| Phanerozoic | 541 - recent |
| Paleozoic | 541 - 251.902 |
| Ordovician | 485.4 - 443.8 |
| Lower Ordovician | 485.4 - 470 |
| Number of records | |
|---|---|
| Taxa | 498 |