Genus Pachysphaera
- Species total:
- 4
- Age range:
- 369 - 9.5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Pachysphaera | Recent | Recent |
|
| Pachysphaera marshalliae | Miocene | Miocene |
|
| Pachysphaera pelagica | Late Carboniferous | Late Sarmatian |
|
| Pachysphaera sp | Eifelian | Early Permian |
|