| details |
Pennsylvanian |
|
USA |
Taylor,T.N. Ultrastructural studies of Paleozoic seed fern pollen |
1982 |
| details |
Paleozoic |
|
Nd |
Taylor,T.N. Pollen and pollen organ evolution in early seed plants. |
1981 |
| details |
Paleozoic |
|
Iowa |
Millay,M.A. et al. Evolutionary trends in fossil Gymnosperm pollen |
1976 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Missourian |
Virgilian |
Illinois |
Potonie,R. Fossil sporae in situ. Comparison with the sporae dispersae. Addition to the synopsis of the sporae in situ. |
1965 |
| details |
Middle Pennsylvanian |
|
North America |
Taylor,T.N. The ultrastructure and reproductive significance of monoletes (Pteridospermales) pollen. |
1978 |
| details |
Middle Pennsylvanian |
|
Illinois |
Kedves,M. Tranmission Electron Microscopy of the Fossil Gymnosperm Exines. |
1994 |
| details |
Late Pennsylvanian |
|
North America |
Taylor,T.N. The ultrastructure and reproductive significance of monoletes (Pteridospermales) pollen. |
1978 |
| details |
Late Pennsylvanian |
|
Nd |
Kremp,G.O.W. Tetrad Markings of Pteridophytic spores and their evolutionary significance. |
1967 |
| details |
Late Pennsylvanian |
|
Illinois |
Potonie,R. New phylogenetic facts on fossil spores. |
1967 |
| details |
Late Pennsylvanian |
|
USA |
Taylor,T.E. et al. Studies of spores from Carboniferous fructifications. 1. Introduction and preliminary survey utilizing the Scanning Electron Microscope. |
1969 |
| details |
Late Pennsylvanian |
|
USA |
Taylor,T.N. et al. Preliminary study of spores from Carboniferous fructifications utilizing the Scanning Electron Microscope. |
1969 |
| original |
Late Pennsylvanian |
|
Illinois |
Schopf,J.M. Pteridosperm male fructifications |
1948 |
| details |
Desmoinesian |
Virgilian |
Illinois |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
| details |
Carboniferous |
|
Nd |
Bharadwaj,D.C. et al. Suggestions for a morphological classification of sporae dispersae. |
1968 |
| details |
Carboniferous |
|
Illinois |
Taylor,T.N. Halletheca reticulatus, gen.et sp.nov. |
1971 |