| details |
Late Westphalian A |
|
Belgium |
Pi©rart,P. Associations of microspores and megaspores in an Upper Westphalian A Stratum (Beeringen, Seam 70) in Campine (Belgium). |
1968 |
| details |
Late Carboniferous |
|
Poland |
Brzozowska,M. Megaspore study. (In: The Results of Borek Szlachecki Bore-Hole. S.Alexandrowicz et al, editor). |
1968 |
| details |
Late Carboniferous |
|
Nd |
Hemsley,A.R. et al. The occurrence and significance of ultrastructure in fossil spores. |
1991 |
| details |
Late Carboniferous |
|
England |
Chaloner,W.G. et al. A seed megaspore from the Devonian of Canada. |
1964 |
| details |
Late Carboniferous |
|
Nd |
Hemsley,A.R. Teratisms in living and fossil megaspores of the Lycopsidia: The arrangement and exine Ontogeny |
1997 |
| details |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |
| details |
Carboniferous |
|
USA |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Carboniferous |
|
Nd |
Chaloner,W.G. et al. Heterospory: Cul-de-Sac or pathway to the seed? (In: Pollen and Spores, Patterns of Diversification. S.Blackmore and S.H.Barnes, editors) |
1991 |