Genus Acritarch
- Species total:
- 160
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Acritarch form 4 Visa.et al,1976 | Ordovician | Ordovician |
|
| Acritarch form 3 Visa.et al,1976 | Ordovician | Ordovician |
|
| Acritarch form 2 Visa.et al,1976 | Ordovician | Ordovician |
|
| Acritarch form 2 | Campanian | Maastrichtian |
|
| Acritarch form 1 Visa.et al,1976 | Ordovician | Ordovician |
|
| Acritarch form 1 | Santonian | Maastrichtian |
|
| Acritarch | Proterozoic | Early Tortonian |
|