Genus Zonosphaeridium
- Species total:
- 54
- Age range:
- 4100 - 230 MA (obsolete dating)
- IRMNG:
- find
Name | From | To | Age range |
---|---|---|---|
Zonosphaeridium actinomorphum | Early Cambrian | Early Cambrian |
|
Zonosphaeridium timopheevii | Middle Ordovician | Middle Ordovician |
|
Zonosphaeridium ocellatum | Arenigian | Arenigian |
|