Genus Pylomacystion
- Species total:
- 2
- Age range:
- 142.33 - 123 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Pylomacystion | Late Tithonian | Valanginian |
|
| Pylomacystion californicum | Late Tithonian | Valanginian |
|
Genus Pylomacystion
- Species total:
- 2
- Age range:
- 142.33 - 123 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Pylomacystion | Late Tithonian | Valanginian |
|
| Pylomacystion californicum | Late Tithonian | Valanginian |
|