| details |
Westphalian |
|
USSR(Ukrainian SSR) |
Lyuber,A.A. et al. Classification and stratigraphic value of spores of some Carboniferous Coal deposits in the USSR. |
1938 |
| details |
Westphalian C |
|
Germany(Rhineland) |
Lyuber,A.A. et al. Classification and stratigraphic value of spores of some Carboniferous Coal deposits in the USSR. |
1938 |
| details |
Middle Carboniferous |
Late Carboniferous |
USSR |
Naumova,S.N. Spores and pollen of coals of the USSR. |
1939 |
| details |
Middle Carboniferous |
Late Carboniferous |
W.Germany(N.Rhine) |
Naumova,S.N. Spores and pollen of coals of the USSR. |
1939 |
| details |
Middle Carboniferous |
Late Carboniferous |
USSR |
Pokrovskaya,I.M. Pollen analysis |
1958 |