Genus Polyhedrosphaeridium
- Species total:
- 2
- Age range:
- 650 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Polyhedrosphaeridium | Vendian | Vendian |
|
| Polyhedrosphaeridium echinatum | Middle Cambrian | Middle Cambrian |
|
Genus Polyhedrosphaeridium
- Species total:
- 2
- Age range:
- 650 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Polyhedrosphaeridium | Vendian | Vendian |
|
| Polyhedrosphaeridium echinatum | Middle Cambrian | Middle Cambrian |
|