| details |
Asselian |
Guadalupian |
Canada(Arctic) |
Utting,J. Preliminary palynological zonation of surface and subsurface sections of Carboniferous, Permian and lowest Triassic Rocks, Sverdrup Basin, Canadian Arctic Archipelago. |
1989 |
| details |
Artinskian |
Kungurian |
Brazil(Rio Grande Sul) |
Fabricio,M.E.D. Palynology of the Rio Bonito Formation in the Gravatai-Morungava area, Rio Grande do Sul. |
1981 |
| details |
Artinskian |
|
Brazil(Santa Catarina) |
Bortoluzzi,C.A. et al. Geologic investigations of the Santa Catarina Coal Basin, stratigraphy, sedimentology, paleontology and petrography of coals. |
1978 |
| details |
Artinskian |
|
USSR(Kazakh SSR) |
Dalyan,I.B. et al. Palynological separation of the stratigraphy of Lower Permian deposits of the eastern Border zone of the Precaspian Depression |
1977 |
| details |
Artinskian |
Kazanian |
USSR(Pre-Urals) |
Hart,G.F. The biostratigraphy of Permian palynofloras. |
1970 |
| details |
Artinskian |
|
USSR(Kazakh SSR) |
Medvedeva,A.M. et al. Direct evidence for vertical oil migration in the eastern Precaspian. |
1993 |