- Author:
- Cramer,F.H.;Cramer,M.
- Year:
- 1972
- Title:
- North American Silurian palynofacies and their spatial arrangement.
- Reference:
- Cramer,F.H. et al. (1972) North American Silurian palynofacies and their spatial arrangement. Pal¤eontographica Abteilung B Vol. 138 # 5 P. 107- 180
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Veryhachium | Veryhachium reductum | USA | Silurian | |
| Veryhachium | Veryhachium scabratum | USA | Silurian | |
| Veryhachium | Veryhachium serpentinatum | USA(Eastern) | Early Gothlandian | |
| Veryhachium | Veryhachium stelligerum | USA | Silurian | |
| Veryhachium | Veryhachium tetrahedroide | USA | Silurian | |
| Veryhachium | Veryhachium trispinosum | USA | Silurian | |
| Veryhachium | Veryhachium trispinosum | USA | Silurian | |
| Veryhachium | Veryhachium trispinosum | USA | Silurian | |
| Veryhachium | Veryhachium trisulcum | USA(Eastern) | Llandoverian | Wenlockian |
| Veryhachium | Veryhachium valiente | USA | Silurian |