| original |
Westphalian B |
Westphalian C |
Wales |
Butterworth,M.A. et al. Descriptions of nine species of small spores from the British Coal Measures. |
1954 |
| original |
Westphalian B |
Westphalian C |
England |
Butterworth,M.A. et al. Descriptions of nine species of small spores from the British Coal Measures. |
1954 |
| original |
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 |
| original |
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 |
Late Carboniferous |
|
England(Staffordshire) |
Bharadwaj,D.C. The spore flora of Velener Schichten (Lower Westphalian D) in the Ruhr Coal Measures. |
1957 |
| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 3 |
1960 |
| original |
Nd |
|
Nd |
Frederiksen,N.O. Sporomorphs of the Brookville Seam near Brookville, Pennsylvania. |
1961 |
| details |
Early Carboniferous |
|
China(Kansu) |
Kao,L. A Lower Carboniferous spore assemblage from the Qianheishan Formation of Jingyuan County, Kansu and its age. |
1980 |
| details |
Tournaisian |
Visean |
USSR(Russian Platform) |
Byvsheva,T.V. Spores of the Tournaisian and Visean deposits around the Russian Platform. (In: Atlas of Spores and Pollen of Oil and Gas Bearing Deposits of the Russian and Turonskoi Platform. V.V.Menner and T.V.Byvsheva, editors) |
1985 |