original |
Devonian |
|
Oklahoma |
Urban,J.B. Microfossils of the Woodford Shale (Devonian) of Oklahoma. |
1960 |
original |
Tournaisian |
|
China(Hunan) |
Hou,J.-P. The spore assemblages of the transition strata between the Devonian system and the Carboniferous system in the Xikuangshan Region, Central China. |
1982 |
original |
Carboniferous |
|
Brazil(Sao Paulo) |
de Lima,M.R. et al. Palynology of the calcarious concretions of the Itarare Subgroup, (Neopaleozoic of the Parana Basin ), the Aracoiaba Region of the State of Sao Paulo |
1983 |