| details |
Nd |
|
Nd |
McGregor,D.C. Spores and other plant microfossils from selected Devonian sedimentary Formations of Canada |
1957 |
| details |
Silurian |
Early Cretaceous |
Algeria |
de Jekhowsky,B. Organic microfossils (spores, hystrichospheres, chitinozoans, etc.), of the Saharan Pre-Quaternary |
1965 |
| details |
Sakmarian |
Kazanian |
India |
Bharadwaj,D.C. Lower Gondwana formations. |
1969 |
| details |
Tithonian |
|
|
Volkheimer,W. et al. Upper Jurassic microfloral findings from the southern border of the Neuquina Basin (Argentine Republic). |
1975 |
| details |
Early Tournaisian |
Middle Tournaisian |
Ireland |
Zwan,C.J.Van Der et al. Climatic change during the Lower Carboniferous in Euramerica based on multivarative statistical analysis of palynological data |
1985 |
| details |
Early Tournaisian |
Middle Tournaisian |
England |
Zwan,C.J.Van Der et al. Climatic change during the Lower Carboniferous in Euramerica based on multivarative statistical analysis of palynological data |
1985 |
| details |
Early Tournaisian |
Middle Tournaisian |
Canada(Nova Scotia) |
Zwan,C.J.Van Der et al. Climatic change during the Lower Carboniferous in Euramerica based on multivarative statistical analysis of palynological data |
1985 |
| details |
Late Visean |
|
Canada |
Zwan,C.J.Van Der et al. Climatic change during the Lower Carboniferous in Euramerica based on multivarative statistical analysis of palynological data |
1985 |