Genus Acritarch
- Species total:
- 160
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Acritarch | Proterozoic | Early Tortonian |
|
| Acritarch form 1 | Santonian | Maastrichtian |
|
| Acritarch form 1 Visa.et al,1976 | Ordovician | Ordovician |
|
| Acritarch form 2 | Campanian | Maastrichtian |
|
| Acritarch form 2 Visa.et al,1976 | Ordovician | Ordovician |
|
| Acritarch form 3 Visa.et al,1976 | Ordovician | Ordovician |
|
| Acritarch form 4 Visa.et al,1976 | Ordovician | Ordovician |
|
| Acritarch form 5 Visa.et al,1976 | Ordovician | Ordovician |
|
| Acritarch form 6 Visa.et al,1976 | Ordovician | Ordovician |
|
| Acritarch form a | Middle Proterozoic | Middle Eocene |
|
| Acritarch form a Cram.,1968 | Middle Llandoverian | Middle Llandoverian |
|
| Acritarch form a Snap.,1992 | Middle Tithonian | Middle Tithonian |
|
| Acritarch form b | Middle Proterozoic | Middle Eocene |
|
| Acritarch form c | Late Riphean | Vendian |
|
| Acritarch forma a | Albian | Santonian |
|
| Acritarch forma b | Late Turonian | Late Miocene |
|
| Acritarch forma e Stra.,1993 | Middle Oligocene | Middle Miocene |
|