Stratigraphic time
| This age is part of | |
|---|---|
| Phanerozoic | 541 - recent |
| Mesozoic | 251.902 - 66 |
| Jurassic | 201.3 - 145 |
| This age is subdivided to | |
|---|---|
| Callovian | 166.1 - 163.5 |
| Bathonian | 168.3 - 166.1 |
| Bajocian | 170.3 - 168.3 |
| Aalenian | 174.1 - 170.3 |
| Number of records | |
|---|---|
| Taxa | 407 |