Genus Semicavidinium
- Species total:
- 2
- Age range:
- 149 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Semicavidinium | Middle Kimmeridgian | Middle Kimmeridgian |
|
| Semicavidinium mitra | Middle Kimmeridgian | Middle Kimmeridgian |
|