| details |
Westphalian A |
Westphalian B |
W.Germany(N.Rhine) |
Potonie,R. et al. The sporae dispersae of the Ruhr Carboniferous, their morphography and stratigraphy with reviews of species of other areas. Part 1. |
1955 |
| details |
Westphalian C |
|
Germany(Rhineland) |
Potonie,R. et al. The sporae dispersae of the Ruhr Carboniferous, their morphography and stratigraphy with reviews of species of other areas. Part 1. |
1955 |
| details |
Visean |
Moscovian |
USSR(Ukrainian SSR) |
Ishchenko,A.M. et al. Megaspores of the Carboniferous age and their stratigraphic importance |
1962 |
| details |
Westphalian B |
|
W.Germany(Rhineland) |
Moller,G.W. Microfloristic and micropetrographic investigation from the Middle Alsdorfer Beds, (Layer 10-17) of the Emil Mayrisch Ravine in Aachener Coal Seam. (In: The Geology of Northwestern German Coal Beds.) |
1966 |
| details |
Nd |
|
Nd |
Spinner,E. Contribution on the megaspore genus Tuberculatisporites (Ibrahim)Potonie and Kremp,1954. |
1968 |
| details |
Namurian A |
Westphalian A |
Germany |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Namurian A |
Westphalian A |
France |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Westphalian |
|
England(Gloucestershire) |
Spinner,E. The occurrence and distribution of megaspores in Drybrook Sandstone and associated Measures of the Forest of Dean Basin, Gloucestershire, England |
1984 |
| details |
Asbian |
|
England(Gloucestershire) |
Cleal,C.J. Plant macrofossils from the Edgehills Sandstone, Forest of Dean |
1986 |