| original |
Chesterian |
|
Illinois |
Hoffmeister,W.S. et al. Mississippian plant spores from the Hardinsburg Formation of Illinois and Kentucky. |
1955 |
| original |
Chesterian |
|
Kentucky |
Hoffmeister,W.S. et al. Mississippian plant spores from the Hardinsburg Formation of Illinois and Kentucky. |
1955 |
| details |
Late Mississippian |
Namurian A |
Canada(NWT,Mackenzie) |
Hacquebard,P.A. et al. A Carboniferous spore assemblage, in coal from the South Nahanni River area, Northwest Territories. |
1957 |
| details |
Carboniferous |
Permian |
Nd |
Pi©rart,P. Preliminary notes on the genus Lycospora, Schopf, Wilson and Bentall. |
1960 |
| details |
Early Visean |
|
USSR(Belorussian SSR) |
Kedo,G.I. Spores of the Lower Carboniferous of the Pripyat Trough, (Yasmopolyanskii Substage). (In: Paleontology and Stratigraphy of the BSSR) |
1966 |
| details |
Visean |
|
Turkey |
Agrali,B. Palynological studies and age determinations of some Coal intervals in Amasra Carboniferous Basin, Turkey |
1969 |
| details |
Namurian B |
Westphalian A |
Iowa |
Ravn,R.L. et al. A Morrowan, (Upper Carboniferous), miospore flora from eastern Iowa, USA. |
1982 |
| details |
Morrowan |
|
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |