| details |
Early Jurassic |
|
USSR |
Pokrovskaya,I.M. Pollen analysis |
1958 |
| details |
Nd |
|
Nd |
Zaklinskaya,E.D. et al. Taxonomy and nomenclature of fossil spores and pollen |
1960 |
| details |
Nd |
|
Nd |
Rueda-Gaxiola,J. A new systematic morphological classification for fossil pollen and spores. Nomenclature and parataxonomy. |
1969 |
| details |
Aptian |
Albian |
Brazil(Pernambuco) |
de Lima,M.R. The genus Classopollis in Mesozoic Basins of North East Brazil |
1976 |
| details |
Famennian |
|
Kentucky |
Martin,S.J. et al. A biostratigraphic analysis of core samples from wells drilled in the Devonian shale interval of the Appalachian and Illinois Basin |
1978 |