- Author:
- Colbath,G.K.
- Year:
- 1986
- Title:
- Abrupt terminal Ordovician extinction in phytoplankton associations, Southern Appalachians.
- Reference:
- Colbath,G.K. (1986) Abrupt terminal Ordovician extinction in phytoplankton associations, Southern Appalachians. Geology Vol. 14 P. 943- 946
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Veryhachium | Veryhachium hamii | USA(Eastern) | Late Ashgillian | |
| Veryhachium | Veryhachium lairdii | USA(Eastern) | Ashgillian | Llandoverian |
| Veryhachium | Veryhachium trispinosum | USA(Eastern) | Llandoverian | |
| Villosacapsula | Villosacapsula setosapellicula | USA(Eastern) | Ashgillian | |
| Visbysphaera | Visbysphaera | USA(Eastern) | Llandoverian |