| original |
Artinskian |
Kungurian |
Brazil(Rio Grande Sul) |
Burjack,M.I.A. Palynological study of the Charqueadas Coalfield, Rio Grande do Sul, Brazil. |
1978 |
| original |
Kazanian |
Early Triassic |
China(Sinkiang Uighur) |
Hou,J. et al. Late Permian sporo-pollen assemblages. (In: Permian and Triassic Strata and Fossil Assemblages in the Dalongkou Area of Jimsar, Xinjiang. J. Yang et al, editors) |
1986 |
| original |
Middle Pennsylvanian |
|
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |
| original |
Early Permian |
|
Canada(Yukon) |
Bamber,E.W. et al. Stratigraphy and palynology of a Permian section, Tatonduk River, Yukon Territory. |
1969 |
| original |
Missourian |
|
Oklahoma |
Edwards,W.A. Palynology of the Francis Shale (Pennsylvanian) from near Ada, Oklahoma. |
1966 |