| details |
Late Givetian |
|
France(Pas-de-Calais) |
Taugourdeau-Lantz,J. The spores of the Frasnian of the Bas Boulonnais (France). |
1967 |
| original |
Givetian |
|
France(Boulonnais) |
Taugourdeau-Lantz,J. New Frasnian spores from Boulonnais (France). |
1967 |
| details |
Givetian |
|
France(Pas-de-Calais) |
Taugourdeau-Lantz,J. Spores from the Frasnian of an authorized region, the Boulonnais. |
1971 |
| details |
Givetian |
|
France(Boulonnais) |
Brice,D. et al. New biostratigraphic data on the Givetian and Frasnian of Ferques (Boulonnais, France). |
1979 |
| details |
Nd |
|
Nd |
Loboziak,S. et al. Miospores in Givetian to Lower Frasnian sediments dated by conodonts from the Boulonnais, France. |
1980 |
| details |
Middle Pennsylvanian |
|
West Virginia |
Kosanke,R.M. Palynological studies of Middle Pennsylvanian Coal Beds of the proposed Pennsylvania system stratotype in West Virginia |
1988 |