Genus Perisseiasphaeridium
- Species total:
- 19
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Perisseiasphaeridium sp.A Will.& Brid.,1975 | Late Eocene | Early Oligocene |
|
| Perisseiasphaeridium sp.B | Valanginian | Valanginian |
|