| original |
Middle Cambrian |
Late Cambrian |
USSR(Pre-Baltic) |
Timofeev,B.V. Ancient flora of the Prebaltic Region and its stratigraphic significance |
1959 |
| details |
Early Cambrian |
|
USSR(Irkutskaya Oblast) |
Rudavskaya,V.A. et al. On the stratigraphy of Cambrian deposits of Pre-Baikal |
1963 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Early Cambrian |
|
USSR(Siberia) |
Rudavskaya,V.A. Cambrian Hystrichospheres of the Southern Part of the Siberian Platform. |
1965 |
| details |
Early Cambrian |
|
USSR(Irkutskaya Oblast) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| original |
Ordovician |
|
Nd |
GŠ³rka,H. Microorganisms of the Ordovician of Poland. |
1969 |
| details |
Ordovician |
|
Poland |
Jagielska,L. Flora of the Ordovician;Microflora |
1972 |
| details |
Tremadocian |
|
France(Herault) |
Rauscher,R. Micropaleontological and stratigraphic research in the Ordovician and Silurian in France. Study of the acritarchs, chitinozoans and spores. |
1973 |
| details |
Middle Cambrian |
Late Cambrian |
USSR(Pre-Baltic) |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |