| details |
Carboniferous |
|
Nd |
Chaloner,W.G. et al. Heterospory: Cul-de-Sac or pathway to the seed? (In: Pollen and Spores, Patterns of Diversification. S.Blackmore and S.H.Barnes, editors) |
1991 |
| details |
Westphalian A |
Westphalian D |
Michigan |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Early Pennsylvanian |
|
Michigan |
Arnold,C.A. Megaspores from the Michigan Coal Basin. |
1950 |
| details |
Early Westphalian A |
|
Kentucky |
Phillips,T.L. Reproduction of Heterosporous Arborescent Lycopods in the Mississippian-Pennsylvanian of Euramerica. |
1979 |
| details |
Pennsylvanian |
|
Kentucky |
Taylor,T.N. et al. Achlamydocarpon varius, comb.nov. Morphology and reproductive biology. |
1976 |
| details |
Middle Pennsylvanian |
|
Kentucky |
Leisman,G.A. et al. Megasporangiate and microsporangiate cones of Achlamydocarpon varius, from the Middle Pennsylvanian. |
1979 |
| details |
Early Westphalian A |
|
Illinois |
Phillips,T.L. Reproduction of Heterosporous Arborescent Lycopods in the Mississippian-Pennsylvanian of Euramerica. |
1979 |
| details |
Morrowan |
|
Illinois |
Kosanke,R.M. Mississippian-Pennsylvanian boundary in the United States based on palynomorphs. (In: Biostratigraphic data for a Mid-Carboniferous boundary. W.H.C.Ramsbottom et al.editors) |
1982 |
| details |
Pennsylvanian |
|
Illinois |
Taylor,T.N. et al. Achlamydocarpon varius, comb.nov. Morphology and reproductive biology. |
1976 |
| details |
Middle Pennsylvanian |
Late Pennsylvanian |
Illinois |
Winslow,M.R. Upper Mississippian and Pennsylvanian megaspores and other plant microfossils from Illinois. |
1959 |
| details |
Carboniferous |
|
Germany |
Horst,U. From the stratigraphy to fine-stratigraphy of Middle German Brown and Hard Coals. |
1952 |
| details |
Stephanian A |
|
France(Tarn) |
Fournet de Tosecq,P. et al. Inventory of the megaspores of the Marmottan Seam (Carmaux Basin, Tarn). |
1965 |
| details |
Nd |
|
France(Saone-et-Loire) |
Pi©rart,P. Some megaspores from the Stephanian Coal of the Blanzy and Decazeville Basins. |
1955 |
| details |
Stephanian |
|
France(Rhin,Bas) |
Lachkar,G. Megaspores of the Saar-Lorraine Coal Basin. a systematic study and statistical application to the Upper Carboniferous stratigraphy. |
1975 |
| details |
Late Carboniferous |
|
France(Rhin,Bas) |
Lachkar,G. Megaspores of the Saar-Lorraine Coal Basin. a systematic study and statistical application to the Upper Carboniferous stratigraphy. |
1975 |
| details |
Westphalian C |
|
France(Pas-de-Calais) |
Selosse,N. Inventory of megaspores of Faisceau de Meuniere (Lower Westphalian B) in the Coal Basin of the North and of Pas-de-Calais. |
1963 |
| details |
Westphalian B |
|
France(Pas-de-Calais) |
Selosse,N. Inventory of megaspores of Faisceau de Meuniere (Lower Westphalian B) in the Coal Basin of the North and of Pas-de-Calais. |
1963 |