details |
Early Pennsylvanian |
|
Kentucky |
Taylor,T.N. Combined Transmission and Scanning Electron Microscopy of in situ Palaeozoic spores. |
1973 |
details |
Middle Pennsylvanian |
|
Kansas |
Taylor,T.N. Combined Transmission and Scanning Electron Microscopy of in situ Palaeozoic spores. |
1973 |
original |
Early Pennsylvanian |
|
Kentucky |
Kedves,M. Tranmission Electron Microscopy of the Fossil Gymnosperm Exines. |
1994 |
original |
Middle Pennsylvanian |
|
Kansas |
Kedves,M. Tranmission Electron Microscopy of the Fossil Gymnosperm Exines. |
1994 |