| original |
Chesterian |
|
Oklahoma |
Wiggins,V.D. Palynomorph fossils from the Goddard Formation (Mississippian) of Southern Oklahoma |
1962 |
| original |
Namurian |
|
Romania |
Venkatachala,B.S. et al. Microfloristic studies on the Paleozoic of the Moesian Platform. On the presence of the Carboniferous formation in the foundation of the Calareti zone. |
1962 |
| original |
Pennsylvanian |
|
Iowa |
Ravn,R.L. An introduction to the stratigraphic palynology of the Cherokee Group (Pennsylvanian) coals of Iowa. |
1979 |
| original |
Late Triassic |
|
China(Hunan) |
Qian,L. et al. Fossils of the Mesozoic coal-bearing strata of Hunan (Xiang) and Jiangxi (Gan) District. Part 3; Pollen and Spore assemblages. |
1983 |
| original |
Late Triassic |
|
China(Kiangsi) |
Qian,L. et al. Fossils of the Mesozoic coal-bearing strata of Hunan (Xiang) and Jiangxi (Gan) District. Part 3; Pollen and Spore assemblages. |
1983 |
| original |
Atokan |
|
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |