- Author:
- Servais,T.
- Year:
- 1997
- Title:
- An annotated bibliographical review of Ordovician acritarchs
- Reference:
- Servais,T. (1997) An annotated bibliographical review of Ordovician acritarchs Annales de la Soci©t© G©ologique de Belgique Vol. 120 # 1 P. 23- 72
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| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Nucellosphaeridium | Nucellosphaeridium | Nd | Ordovician | |
| Ocridoligotriletes | Ocridoligotriletes | Nd | Ordovician | |
| Ocridoligotriletum | Ocridoligotriletum | Nd | Ordovician | |
| Octogonium | Octogonium | Nd | Ordovician | |
| Ooidium | Ooidium | Nd | Ordovician | |
| Ordovicidium | Ordovicidium | Nd | Ordovician | |
| Orthosphaeridium | Orthosphaeridium | Nd | Ordovician | |
| Orygmatosphaeridium | Orygmatosphaeridium | Nd | Ordovician | |
| Ovulum | Ovulum | Nd | Ordovician | |
| Ovum | Ovum | Nd | Ordovician | |
| Pachysphaeridium | Pachysphaeridium | Nd | Ordovician | |
| Palaeohystrichosphaeridium | Palaeohystrichosphaeridium | Nd | Ordovician | |
| Palaiosphaeridium | Palaiosphaeridium | Nd | Ordovician | |
| Paniculaferum | Paniculaferum | Nd | Ordovician | |
| Papilliferum | Papilliferum | Nd | Ordovician | |
| Passalosphaera | Passalosphaera | Nd | Ordovician | |
| Petaloferidium | Petaloferidium | Nd | Ordovician |