- Author:
- Clendening,J.A.
- Year:
- 1969
- Title:
- The base of the Permian in the Appalachians; ninety years of controversy.
- Reference:
- Clendening,J.A. (1969) The base of the Permian in the Appalachians; ninety years of controversy. West Virginia Geological and Economic Survey, Guidebook P. 229- 233
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Tuberculatosporites | Tuberculatosporites spinoplicatus | USA(Appalachian Bn.) | Stephanian | |
| Verrucosisporites | Verrucosisporites | USA(Appalachian Bn.) | Stephanian | |
| Vesicaspora | Vesicaspora | USA(Appalachian Bn.) | Stephanian | |
| Vittatina | Vittatina | USA(Appalachian Bn.) | Stephanian | |
| Walchia | Walchia | USA(Appalachian Bn.) | Stephanian |