Genus Pratulasphaera
- Species total:
- 3
- Age range:
- 401 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Pratulasphaera | Late Frasnian | Late Frasnian |
|
| Pratulasphaera novacula | Frasnian | Frasnian |
|
| Pratulasphaera sp | Middle Pridolian | Middle Pridolian |
|