| details |
Early Carboniferous |
|
USSR(Kazakh SSR) |
Bulekbaev,S.E. et al. Carboniferous and Permian deposits in the eastern part of the Pre-Kaspian Depression |
1967 |
| details |
Permian |
|
USSR(Siberia) |
Odintsova,M.M. et al. On the age of the Almazon Layers of the southern slope of the Anabarsk Anticline. |
1969 |
| details |
Early Carboniferous |
|
USSR(Siberia) |
Pashkevich,N.G. et al. Miospores of Upper Paleozoic plants of Central Siberia. |
1978 |
| details |
Morrowan |
Desmoinesian |
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |