| details |
Triassic |
Liassic |
France(Pas-de-Calais) |
Bonte,A. et al. On the nature and age of the Liassic sediments in the sub-soil of Boulogne-sur-Mer (Pas-de-Calais). |
1962 |
| details |
Carboniferous |
Liassic |
Nd |
Corsin,P.M. et al. Classification of spores and pollen from the Carboniferous to the Liassic |
1962 |
| original |
Early Liassic |
|
France(Pas-de-Calais) |
Danze-Corsin,P. et al. Microflora. (In: The Lower Lias flora of Boulonnais. (macro and micro flora.) |
1963 |
| details |
Middle Dogger |
|
W.Germany |
Wetzel,W. Microorganisms of Jurassic and Cretaceous Sauria Castings. |
1967 |
| details |
Nd |
|
Nd |
Jansonius,J. Spore nomenclature and the proposals of the Lille palynologists. |
1968 |
| details |
Valanginian |
Aptian |
Bulgaria |
Ercegovac,M. et al. Microfloral residues from the Lower Cretaceous of the Stara Planina Montains, Bulgaria. |
1972 |