Genus Protonucellosphaeridium
- Species total:
- 4
- Age range:
- 1746.67 - 230 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Protonucellosphaeridium | Late Precambrian | Paleozoic |
|
| Protonucellosphaeridium nucellum | Late Precambrian | Early Cambrian |
|
| Protonucellosphaeridium patelliforme | Late Riphean | Late Riphean |
|
| Protonucellosphaeridium sp | Cambrian | Cambrian |
|