| details |
Late Pennsylvanian |
|
Ohio |
Cross,A.T. The geology of the Pittsburgh Coal: Stratigraphy, petrology, origin and composition, and geologic interpretation of mining problems. |
1952 |
| original |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |
| original |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |
| original |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |
| original |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |
| details |
Desmoinesian |
|
Illinois |
Schopf,J.M. Spores from the Herrin (No. 6) Coal Bed in Illinois. |
1938 |
| details |
Desmoinesian |
|
Illinois |
Schopf,J.M. Spores from the Herrin (No. 6) Coal Bed in Illinois. |
1938 |
| details |
Desmoinesian |
|
Illinois |
Schopf,J.M. Spores from the Herrin (No. 6) Coal Bed in Illinois. |
1938 |
| details |
Desmoinesian |
|
Illinois |
Schopf,J.M. Spores characteristic of Illinois Coal No. 6. |
1935 |
| details |
Desmoinesian |
|
Illinois |
Schopf,J.M. The paleobotanical significance of plant structure in coal. |
1936 |
| details |
Late Carboniferous |
|
Czechoslovakia |
Sen,J. Notes on the spores of four Carboniferous Lycopods |
1958 |
| details |
Middle Pennsylvanian |
|
Kansas |
Schlanker,C.M. et al. The Herbaceous Carboniferous Lycopod, Selaginella fraiponti, comb.nov. |
1969 |
| details |
Stephanian |
|
Spain |
Dijkstra,S.J. Spanish Carboniferous megaspores and their use in stratigraphic correlation. |
1955 |
| details |
Westphalian D |
|
Spain |
Dijkstra,S.J. Spanish Carboniferous megaspores and their use in stratigraphic correlation. |
1955 |
| original |
Stephanian |
|
Poland |
Zerndt,J. Megaspores of a Seam at Libiaz (Stephanian). |
1930 |
| details |
Carboniferous |
|
E.Germany(Karl Marx) |
Zerndt,J. Megaspores of the Zwickau and Lugau-Oelsnitz Carboniferous. |
1932 |
| details |
Late Carboniferous |
|
W.Germany(N.Rhine) |
Stach,E. et al. Spores in the Flame, Gasflame and Gascoal of the Ruhr Coal. |
1931 |