Stratigraphic time
| This age is part of | |
|---|---|
| Phanerozoic | 541 - recent |
| Paleozoic | 541 - 251.902 |
| Permian | 298.9 - 251.902 |
| This age is subdivided to | |
|---|---|
| Changhsingian | 254.14 - 251.902 |
| Wuchiapingian | 259.1 - 254.14 |
| Number of records | |
|---|---|
| Taxa | 243 |
| This age is part of | |
|---|---|
| Phanerozoic | 541 - recent |
| Paleozoic | 541 - 251.902 |
| Permian | 298.9 - 251.902 |
| This age is subdivided to | |
|---|---|
| Changhsingian | 254.14 - 251.902 |
| Wuchiapingian | 259.1 - 254.14 |
| Number of records | |
|---|---|
| Taxa | 243 |