Genus Cycloposphaeridium
- Species total:
- 3
- Age range:
- 514 - 468.33 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Cycloposphaeridium | Ordovician | Early Llanvirnian |
|
| Cycloposphaeridium auriculatum | Late Arenigian | Early Llanvirnian |
|
| Cycloposphaeridium sp | Late Cambrian | Early Ordovician |
|