- Author:
- Jacobson,S.R.
- Year:
- 1977
- Title:
- Middle and Upper Ordovician acritarchs, Eastern Midcontinent, USA.
- Reference:
- Jacobson,S.R. (1977) Middle and Upper Ordovician acritarchs, Eastern Midcontinent, USA. Coloquio International Palinologia,(Leon,Spain,Sept.1977),Abstracts P. 21- 21
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Micrhystridium | Micrhystridium | Ohio | Middle Ordovician | Late Ordovician |
| Ordovicidium | Ordovicidium | New York | Middle Ordovician | Late Ordovician |
| Ordovicidium | Ordovicidium | Ohio | Middle Ordovician | Late Ordovician |
| Peteinosphaeridium | Peteinosphaeridium | New York | Middle Ordovician | Late Ordovician |
| Peteinosphaeridium | Peteinosphaeridium | Ohio | Middle Ordovician | Late Ordovician |
| Polygonium | Polygonium | New York | Middle Ordovician | Late Ordovician |
| Polygonium | Polygonium | Ohio | Middle Ordovician | Late Ordovician |
| Veryhachium | Veryhachium | New York | Middle Ordovician | Late Ordovician |
| Veryhachium | Veryhachium | Ohio | Middle Ordovician | Late Ordovician |