Stratigraphic time
| This age is part of | |
|---|---|
| Phanerozoic | 542 - recent |
| Paleozoic | 542 - 251 |
| This age is subdivided to | |
|---|---|
| Upper Permian | 260.4 - 251 |
| Middle Permian | 270.6 - 260.4 |
| Lower Perimian | 299 - 270.6 |
| Number of records | |
|---|---|
| Taxa | 226 |
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| This age is part of | |
|---|---|
| Phanerozoic | 542 - recent |
| Paleozoic | 542 - 251 |
| This age is subdivided to | |
|---|---|
| Upper Permian | 260.4 - 251 |
| Middle Permian | 270.6 - 260.4 |
| Lower Perimian | 299 - 270.6 |
| Number of records | |
|---|---|
| Taxa | 226 |