- Author:
- Gгrka,H.
- Year:
- 1969
- Title:
- Microorganisms of the Ordovician of Poland.
- Foreign title:
- Microorganismes de l'Ordovicien de Pologne.
- Reference:
- Gгrka,H. (1969) Microorganisms of the Ordovician of Poland. [ Microorganismes de l'Ordovicien de Pologne. ] Palaeontologia Polonica # 22 P. 1- 102
- Google Academy:
- try to search by title in english or foreign title
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Veryhachium | Veryhachium estrellitae | Poland | Late Arenigian | |
| Veryhachium | Veryhachium octoaster | Poland | Late Arenigian | |
| Veryhachium | Veryhachium oligospinosum | Poland | Late Arenigian | |
| Veryhachium | Veryhachium oligospinosum | Poland | Ordovician | |
| Veryhachium | Veryhachium stelligerum | Poland | Late Arenigian | |
| Vulcanisphaera | Vulcanisphaera frequens | Poland | Late Tremadocian |