| original |
Desmoinesian |
|
Illinois |
Schopf,J.M. Spores from the Herrin (No. 6) Coal Bed in Illinois. |
1938 |
| details |
Late Mississippian |
Permian |
Nd |
Millay,M.A. et al. Paleozoic seed fern pollen organs. |
1979 |
| details |
Late Carboniferous |
|
W.Germany(N.Rhine) |
Potonie,R. et al. The genera of Paleozoic sporae dispersae and their stratigraphy. |
1954 |
| details |
Pennsylvanian |
|
Pennsylvania |
Ferm,J.C. Megaspores of the Middle (?) Kittanning Coal in Beaver County, Pennsylvania. |
1950 |
| details |
Desmoinesian |
|
North America |
Frederiksen,N.O. The Rise of the Mesophytic flora |
1972 |
| details |
Late Pennsylvanian |
|
Nd |
Millay,M.A. et al. Evolutionary trends in fossil Gymnosperm pollen |
1976 |
| details |
Nd |
|
Nd |
Taylor,T.N. et al. Devonian spore ultrastructure: Rhabdosporites |
1996 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Gipskeuper |
|
Switzerland |
Scheuring,B.W. Palynology and palynostratigraphic study of the Keuper in Bolchentunnel, (Solothurn Jura). |
1970 |
| details |
Nd |
|
Nd |
Bharadwaj,D.C. On the classification of Gymnospermous, sporae dispersae. |
1974 |
| details |
Nd |
|
Nd |
Pant,D.D. Suggestions for the classification and nomenclature of fossil spores and pollen grains |
1954 |
| details |
Pennsylvanian |
|
Nd |
Kosanke,R.M. Mississippian and Pennsylvanian palynology. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Westphalian D |
|
Nd |
Staplin,F.L. et al. Relationships among Gymnospermous pollen. |
1967 |
| details |
Westphalian |
|
Europe |
Hacquebard,P.A. Palynological studies of some Upper and Lower Carboniferous strata in Nova Scotia. |
1961 |
| details |
Carboniferous |
|
Nd |
Millay,M.A. et al. Paleozoic seed fern pollen organs. |
1979 |
| details |
Paleozoic |
|
Nd |
Taylor,T.N. Pollen and pollen organ evolution in early seed plants. |
1981 |
| details |
Middle Pennsylvanian |
Late Pennsylvanian |
USA |
Taylor,T.N. Ultrastructural studies of Paleozoic seed fern pollen |
1982 |