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