| 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 |
| details |
Nd |
|
Nd |
Pant,D.D. Suggestions for the classification and nomenclature of fossil spores and pollen grains |
1954 |
| details |
Late Devonian |
|
China(Hupei) |
Li,C.-S. et al. Frasnian (Upper Devonian) evidence for multiple origins of seed like structures. |
1997 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Stephanian |
|
France |
Pi©rart,P. Megaspores of the French Stephanian |
1965 |
| details |
Pennsylvanian |
|
Europe |
Shearer,J.C. et al. Delineation of distinctive nature of Tertiary coal beds. |
1995 |
| details |
Pennsylvanian |
|
Gondwanaland |
Shearer,J.C. et al. Delineation of distinctive nature of Tertiary coal beds. |
1995 |
| details |
Givetian |
Frasnian |
Greenland |
Allen,K.C. Devonian megaspores from East Greenland. |
1974 |
| details |
Namurian B |
|
Poland |
Kmiecik,H. et al. Application of statistics in the microfloral-Petrographic analysis used in the study of Coal-Seam genesis. |
1974 |
| details |
Early Carboniferous |
|
Brazil(Piaui) |
Dolianiti,E. Relationships between the Paleozoic floras of Brazil. |
1972 |
| details |
Late Carboniferous |
|
Netherlands |
Dijkstra,S.J. Carboniferous megaspores and their practical importance in Mining. |
1957 |
| details |
Westphalian B |
Westphalian C |
W.Germany(N.Rhine) |
Grebe,H. The spore flora of the Seams Agir, Erda and Hagen 2 (Zb), from the Drillings Prosper 4 and 5. |
1966 |
| details |
Early Permian |
|
Australia(S.Australia) |
Harris,W.K. The occurrence and identification of megaspores in Permian sediments, South Australia. |
1969 |
| details |
Carboniferous |
|
Illinois |
Arnold,C.A. An Introduction to Paleobotany. |
1947 |
| details |
Carboniferous |
|
Scotland |
Arnold,C.A. An Introduction to Paleobotany. |
1947 |
| details |
Stephanian A |
|
France(Lorraine) |
Lachkar,G. et al. Distribution of megaspores in the Westphalian D and Lower Stephanian of the Coal Basin of Lorraine |
1965 |
| details |
Late Devonian |
|
Canada(Quebec) |
Chaloner,W.G. et al. A Devonian seed megaspore. |
1963 |