| details |
Roadian |
Ufimian |
Barents Sea |
Grigoriev,M. et al. Sedimentology, palynostratigraphy, palynofacies and thermal maturity of Upper Permian rocks of Kolguyev Island, Barents Sea Russia |
1998 |
| details |
Wolfcampian |
|
Arizona |
Kremp,K.N. Palynology of a Late Paleozoic Coal from fossil Creek Canyon, Arizona. |
1975 |
| details |
Permian |
|
Argentina |
Archangelsky,S. et al. The Carboniferous and Early Permian of the South American Gondwana area. |
1980 |
| details |
Permian |
|
Arctic Ocean |
Dibner,A.F. et al. Carboniferous, Permian and Triassic spore-pollen assemblages of the Barents Sea Shelf and their geological significance. (In: Geology and mineral genesis in Arctic Region USSR. Symposium of Scientific Studies.) |
1981 |