Genus Ramsaysphaera
- Species total:
- 2
- Age range:
- 4100 - 570 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Ramsaysphaera | Archean | Archean |
|
| Ramsaysphaera ramses | Archean | Proterozoic |
|
Genus Ramsaysphaera
- Species total:
- 2
- Age range:
- 4100 - 570 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Ramsaysphaera | Archean | Archean |
|
| Ramsaysphaera ramses | Archean | Proterozoic |
|