| details |
Westphalian B |
|
W.Germany(N.Rhine) |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| details |
Paleozoic |
|
Nd |
Knox,E.M. The spores of Lycopodium, Phylloglossum, Selaginella and Isoetes and their value in the study of microfossils of Paleozoic age. |
1950 |
| details |
Westphalian B |
|
Wales |
Butterworth,M.A. et al. Descriptions of nine species of small spores from the British Coal Measures. |
1954 |
| details |
Westphalian B |
|
England |
Butterworth,M.A. et al. Descriptions of nine species of small spores from the British Coal Measures. |
1954 |
| details |
Late Carboniferous |
|
England(Staffordshire) |
Butterworth,M.A. et al. Microspore distribution in the Seams of the North Staffofdshire, Cannock Chase and North Wales Coalfields |
1954 |
| details |
Late Carboniferous |
|
Wales |
Butterworth,M.A. et al. Microspore distribution in the Seams of the North Staffofdshire, Cannock Chase and North Wales Coalfields |
1954 |
| details |
Westphalian B |
|
England(Kent) |
Butterworth,M.A. et al. Densosporites Berry 1937 and related genera. |
1963 |
| details |
Desmoinesian |
|
Illinois |
Butterworth,M.A. et al. Densosporites Berry 1937 and related genera. |
1963 |
| details |
Stephanian |
|
Kansas |
Gupta,S. et al. Spores and pollen from the rock Lake Shale at Garnett locality of Kansas. |
1969 |
| original |
Desmoinesian |
|
Illinois |
Peppers,R.A. Correlation and palynology of coals in the Carbondale and Spoon Formations (Pennsylvanian) of the northeastern part of the Illinois Basin. |
1970 |
| details |
Desmoinesian |
|
Illinois |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |
| details |
Westphalian B |
|
W.Germany(N.Rhine) |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |