| original |
Oligocene |
|
W.Germany(Hesse) |
Holtz,S. Investigation of the Oligocene spore stratigraphy of Hesse, (West Germany). |
1962 |
| details |
Permian |
|
Czechoslovakia |
Corna,O. et al. Discovery of Permian sporomorphs in the Little Carpathians. |
1962 |
| details |
Late Pennsylvanian |
|
Illinois |
Potonie,R. et al. Pollen of Ullmannia Frumentaria. |
1960 |
| details |
Early Permian |
|
South Dakota |
Kremp,G.O.W. Report on referred fossils.I. |
1960 |
| details |
Early Permian |
|
Australia(W.Australia) |
Playford,G. Permian stratigraphy of the Woolaga Creek area, Mingenew District, Western Australia. |
1959 |
| details |
Stephanian C |
|
W.Germany(N.Rhine) |
Bharadwaj,D.C. et al. Microfloristic evidence on the boundary between the Carboniferous and the Permian systems in Pfalz (W.Germany). |
1957 |
| details |
Late Pennsylvanian |
|
Illinois |
Kosanke,R.M. Correlation of Coals and spore analysis. |
1954 |
| details |
Middle Pennsylvanian |
Late Pennsylvanian |
Louisiana |
Hoffmeister,W.S. et al. Pennsylvanian age of Morehouse Formation of northeastern Louisiana |
1954 |
| original |
Late Permian |
|
Austria |
Klaus,W. Single specimen preparation of fossil sporomorphs. |
1953 |
| details |
Middle Pennsylvanian |
Late Pennsylvanian |
Illinois |
Kosanke,R.M. Pennsylvanian spores of Illinois and their use in correlation. |
1950 |