| details |
Early Permian |
|
Australia(S.Australia) |
Harris,W.K. The occurrence and identification of megaspores in Permian sediments, South Australia. |
1969 |
| details |
Early Carboniferous |
|
Brazil(Piaui) |
Dolianiti,E. Relationships between the Paleozoic floras of Brazil. |
1972 |
| details |
Late Devonian |
|
Canada |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Late Devonian |
|
Canada(Quebec) |
Chaloner,W.G. et al. A Devonian seed megaspore. |
1963 |
| details |
Permian |
|
China |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Late Devonian |
|
China(Hupei) |
Li,C.-S. et al. Frasnian (Upper Devonian) evidence for multiple origins of seed like structures. |
1997 |
| details |
Carboniferous |
|
England |
Arnold,C.A. An Introduction to Paleobotany. |
1947 |
| details |
Westphalian B |
|
England(Leicestershire) |
Scott,A.C. et al. Megaspores and Coal Facies: An example from the Westphalian B, Leicestershire. |
1980 |
| details |
Westphalian B |
|
England(Yorkshire) |
Bartram,K.M. Studies on the ecology of British Carboniferous coal swamps. |
1983 |
| details |
Carboniferous |
|
Europe |
Oshurkova,M.V. The classification of Carboniferous megaspores. (Taxonomy and Methods for the Study of Fossl Pollen and Spores. V.N. Saks and A.F. Khlonova, editors) |
1964 |
| details |
Pennsylvanian |
|
Europe |
Shearer,J.C. et al. Delineation of distinctive nature of Tertiary coal beds. |
1995 |
| details |
Stephanian |
|
France |
Pi©rart,P. Megaspores of the French Stephanian |
1965 |
| 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 |
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 |
| original |
Desmoinesian |
|
Illinois |
Schopf,J.M. Spores from the Herrin (No. 6) Coal Bed in Illinois. |
1938 |
| details |
Carboniferous |
|
Illinois |
Arnold,C.A. An Introduction to Paleobotany. |
1947 |