| details |
Sakmarian |
|
Brazil |
Kremp,G.O.W. A re-evaluation of global plantgeographic Provinces of the Late Paleozoic. |
1974 |
| details |
Early Carboniferous |
|
Brazil(Piaui) |
Dolianiti,E. Relationships between the Paleozoic floras of Brazil. |
1972 |
| details |
Nd |
|
Nd |
Pi©rart,P. The evolution of the megaspores. |
1961 |
| details |
Nd |
|
Nd |
Jansonius,J. et al. Genera File of fossil spores. Supplement 4 |
1980 |
| original |
Westphalian C |
|
Germany(Rhineland) |
Ibrahim,A.C. Spore forms of the Agir horizon of the Ruhr Basin. |
1933 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Nd |
|
Nd |
Pant,D.D. Suggestions for the classification and nomenclature of fossil spores and pollen grains |
1954 |
| details |
Nd |
|
Nd |
Scott,A.C. et al. Paleozoic spores and pollen. Chapter 18G Palaeozoic megaspores. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |