| details |
Early Ordovician |
Middle Ordovician |
USSR(Russian Platform) |
Andreeva,E.M. Guide complexes of plant microfossils of the Upper Proterozoic and lower deposits of the Russian Platform. (In: Palynology, Method and Stratigraphy) |
1973 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Early Ordovician |
|
USSR(Pre-Baltic) |
Downie,C. et al. On the interpretation and status of some Hystrichosphere genera. |
1963 |
| details |
Early Ordovician |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Ordovician |
|
Poland |
Jagielska,L. Flora of the Ordovician;Microflora |
1972 |
| details |
Caradocian |
|
Poland |
Jagielska,L. Preliminary note on microspores from the Ordovician of Brzeziny and Zbrza in the Swiety Krzyz Mts. |
1962 |
| original |
Early Ordovician |
|
USSR(Pre-Baltic) |
Timofeev,B.V. Ancient flora of the Prebaltic Region and its stratigraphic significance |
1959 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |