| original |
Early Gothlandian |
|
USSR(Leningrad) |
Naumova,S.N. Spores of the Lower Silurian. |
1950 |
| original |
Early Gothlandian |
|
USSR(Estonian SSR) |
Naumova,S.N. Spores of the Lower Silurian. |
1950 |
| details |
Early Devonian |
Middle Devonian |
USSR(Azerbaijan SSR) |
Tilina-Stanichnikova,M.S. Discovery of Devonian spores in deposits beneath the Faunistically characterized Devonian in some Regions of Second Baku. |
1965 |
| details |
Early Liassic |
|
Poland |
Orlowska-Zwolinska,T. Lower Liassic age of the Wielichowo Beds in the light of spore and pollen analysis, (Polish Lowland). |
1966 |
| details |
Hettangian |
|
Poland |
Orlowska-Zwolinska,T. Microfloristic criteria for age determination of the beds occurring at the Triassic-Jurassic boundary in the Extra-Carpthian areas of Poland. |
1967 |
| details |
Rhaetian |
Middle Jurassic |
Poland |
Grabowska,I. et al. Flora from the Lower and Middle Jurassic microflora |
1970 |
| details |
Early Jurassic |
Middle Jurassic |
Poland |
Grabowska,I. et al. Flora from the Lower and Middle Jurassic microflora |
1970 |
| original |
Rhaetian |
Dogger |
Poland |
Rogalska,M. Division of the Liassic deposits in Poland (Except for the Carpathian area) based on microscope examinations. |
1971 |
| details |
Ordovician |
Silurian |
USSR(Russian Platform) |
Umnova,N.I. Ordovician and Silurian acritarchs of the Moscow Basin and Prebaltic |
1975 |
| details |
Early Gothlandian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |