- Author:
- Nygreen,P.W.;Bourn,O.B.
- Year:
- 1962
- Title:
- Palynological aspects of the Pennsylvanian-Permian boundary of the South Central United States.
- Reference:
- Nygreen,P.W. et al. (1962) Palynological aspects of the Pennsylvanian-Permian boundary of the South Central United States. Pollen et Spores Vol. 4 # 2 P. 368- 368
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Gnetales | Gnetales | Kansas | Late Pennsylvanian | Early Permian |
| Gnetales | Gnetales | Oklahoma | Late Pennsylvanian | Early Permian |
| Gnetales | Gnetales | Texas | Late Pennsylvanian | Early Permian |