- Author:
- Thusu,B.
- Year:
- 1973
- Title:
- Acritarchs of the Middle Silurian Rochester Formation of Southern Ontario
- Reference:
- Thusu,B. (1973) Acritarchs of the Middle Silurian Rochester Formation of Southern Ontario Palaeontology Vol. 16 # 4 P. 799- 826
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Veryhachium | Veryhachium limaciforme | Canada(Ontario) | Wenlockian | |
| Veryhachium | Veryhachium trispinosum | Canada(Ontario) | Wenlockian | |
| Veryhachium | Veryhachium wenlockium | Canada(Ontario) | Wenlockian | |
| Visbysphaera | Visbysphaera dilatispinosa | Canada(Ontario) | Wenlockian |