| details |
Middle Pennsylvanian |
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 |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Good,C.W. Botryopteris pinnules with Abaxial sporangia. |
1979 |
| details |
Early Pennsylvanian |
|
USA(Mid-Continent) |
Millay,M.A. et al. The ultrastructure of Paleozoic fern spores. |
1982 |