| original |
Late Gothlandian |
|
USSR(Belorussian SSR) |
Piskun,L.V. New species of acritarchs from the Ordovician and Silurian deposits of the Brestskaya Basin. (In: New species of Fossils and Plants of Belorussia. G.I. Goretskii, editor) |
1976 |
| details |
Downtonian |
|
USSR(Belorussian SSR) |
Golubtsov,V.K. Stratigraphic and paleontological research in Byelorussia. |
1978 |
| details |
Early Ludlovian |
|
USSR(Belorussian SSR) |
Nekryata,N.S. et al. Palynological study of Proterozoic and Phanerozoic deposits of Byelorussia. (In: Palynology in the USSR. A.F.Chlonova, editor) |
1988 |
| details |
Late Gothlandian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |