Genus Psilosphaera
- Species total:
- 2
- Age range:
- 65 - 40.25 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Psilosphaera | Early Tertiary | Early Tertiary |
|
| Psilosphaera plicata | Paleocene | Middle Eocene |
|
Genus Psilosphaera
- Species total:
- 2
- Age range:
- 65 - 40.25 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Psilosphaera | Early Tertiary | Early Tertiary |
|
| Psilosphaera plicata | Paleocene | Middle Eocene |
|