| details |
Nd |
|
Nd |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| details |
Westphalian B |
|
W.Germany(N.Rhine) |
Hagemann,H.W. Comparative micropetrographic and sporologic studies of the Zollverein 1-5 Seams from the Middle Essen Beds (Westfal B) of the Ruhrcarbons in reference to correlation of Seams. |
1966 |
| details |
Late 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 |
Early Namurian |
|
Poland |
Grocholski,A. The Volcanic rocks in the Walbrzych Basin in the light of structural studies. |
1965 |
| details |
Middle Stephanian |
|
France(Aveyron) |
Doubinger,J. Sporologic associations (Microspores) of some Stephanian and Autunian deposits |
1960 |
| details |
Early Westphalian B |
|
W.Germany(N.Rhine) |
Schweitzer,H.J. et al. The dispersed spores of the Essener Layers (Lower Westphalian B) in the eastern Ruhr area and their usefulness for Seam comparison |
1991 |
| original |
Westphalian B |
|
W.Germany(N.Rhine) |
Loose,F. Spores of the Bismarck Seam, Ruhr area. |
1934 |
| details |
Early Permian |
|
USSR(Evenki Nat.Okrug) |
Gutova,L.N. et al. Upper Paleozoic spore-pollen complexes of the southeastern Part of the Tunguska River Basin. |
1974 |
| details |
Permian |
|
China(Hupei) |
Chen,J. Permian spores and pollen |
1978 |