original |
Pennsylvanian |
|
Oklahoma |
Clarke,R.T. Palynology of the Secor Coal (Pennsylvanian) of Oklahoma |
1961 |
original |
Westphalian D |
Early Stephanian |
Czechoslovakia |
KalibovЎ-KaiserovЎ,M. The Carboniferous sporae dispersae in the Ocelice Boring in eastern Bohemia. |
1963 |
original |
Desmoinesian |
|
Oklahoma |
Dempsey,J.E. A palynological investigation of the Lower and Upper Mcalester Coals (Pennsylvanian) of Oklahoma. |
1964 |
original |
Westphalian D |
Stephanian |
Czechoslovakia |
KalibovЎ,M. The Carboniferous sporae dispersae in the Ocelice Boring in eastern Bohemia |
1983 |