| details |
Early Gothlandian |
|
USSR(Estonian SSR) |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Early Gothlandian |
|
USSR(Estonian SSR) |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Early Cambrian |
|
USSR(Russian Platform) |
Kedves,M. Introduction to the palynology of Pre-Quaternary deposits |
1986 |
| details |
Ordovician |
|
USSR(Russian Platform) |
Kedves,M. Introduction to the palynology of Pre-Quaternary deposits |
1986 |
| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 3 |
1960 |
| 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 |