Genus Protoarchaeosacculina
- Species total:
- 3
- Age range:
- 4100 - 472 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Protoarchaeosacculina | Precambriam | Cambrian |
|
| Protoarchaeosacculina atava | Precambriam | Arenigian |
|
| Protoarchaeosacculina sp | Sinian | Sinian |
|