| details |
Early Pennsylvanian |
|
USA |
Taylor,T.N. et al. Preliminary study of spores from Carboniferous fructifications utilizing the Scanning Electron Microscope. |
1969 |
| details |
Pottsville |
|
Kentucky |
Brack,S.D. On a newstructurally preserved arborescent Lycopsid fructification from the Lower Pennsylvanian of North Ameica. |
1970 |
| details |
Early Pennsylvanian |
|
Kentucky |
Potonie,R. Examples of the natural system of spores, a supplement to the synopsis of the Sporae in situ, 1963 and the research reports from 1965,1967, and 1970 and to the phylogenetic sporolog 1973 |
1975 |
| details |
Pennsylvanian |
|
Nd |
Brack-Hanes,S.D. et al. Evidence of Paleozoic chromosomes from Lycopod microgametophytes. |
1978 |
| details |
Mississippian |
|
Kentucky |
Phillips,T.L. Reproduction of Heterosporous Arborescent Lycopods in the Mississippian-Pennsylvanian of Euramerica. |
1979 |
| details |
Early Pennsylvanian |
|
Kentucky |
Phillips,T.L. Reproduction of Heterosporous Arborescent Lycopods in the Mississippian-Pennsylvanian of Euramerica. |
1979 |
| details |
Carboniferous |
|
USA |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |