| original |
Springerian |
|
Oklahoma |
Felix,C.J. et al. Palynology of the Springer Formation of southern Oklahoma, USA. |
1967 |
| details |
Springerian |
|
Oklahoma |
Sullivan,H.J. et al. The Mississippian-Pennsylvanian boundary and its correlation with Europe |
1971 |
| details |
Namurian A |
|
USSR(Ukrainian SSR) |
Teteryuk,V.K. Namurian Stage analogues in the Carboniferous Period of the Donets Basin, (based on palynological data). |
1976 |
| details |
Namurian A |
|
USSR(Ukrainian SSR) |
Teteryuk,V.K. et al. Spores and pollen of the Donets Basin Carboniferous and Lower Permian. (In: General Problems of the Carboniferous Stratigraphy) |
1978 |