| details |
Early Devonian |
|
USSR(Siberia) |
Timofeev,B.V. Ordovician and Silurian phytoplankton of the Siberian Platform. |
1963 |
| details |
Ordovician |
|
USSR(Siberia) |
Timofeev,B.V. Ordovician and Silurian phytoplankton of the Siberian Platform. |
1963 |
| details |
Nd |
|
Nd |
Wilson,L.R. et al. Electron microscope studies of the marine palynomorph Quisquilites. |
1971 |
| details |
Silurian |
|
Nd |
Downie,C. The geological history of the microplankton. |
1967 |
| details |
Nd |
|
Nd |
Brito,I.M. The acritarchs |
1967 |
| details |
Nd |
|
Africa |
Cramer,F.H. Middle Silurian continental movement estimated from phytoplankton-facies transgressions. |
1970 |
| details |
|
|
North America |
Cramer,F.H. Middle Silurian continental movement estimated from phytoplankton-facies transgressions. |
1970 |
| details |
|
|
Brazil |
Cramer,F.H. Middle Silurian continental movement estimated from phytoplankton-facies transgressions. |
1970 |
| details |
Nd |
|
Nd |
Eisenack,A. The microfauna of the Ostseekalke. 1. Chitinozoa, Hystrichosphaeres. |
1965 |
| details |
Early Devonian |
|
Canada(Ontario) |
Deunff,J. On a microplankton from the Devonian of Canada containing some new types of Hystrichosphaerids. |
1954 |
| details |
Silurian |
|
Nd |
Deflandre,G. Groups Incertae Sedis.Hystrichospheres. chitinozoans. |
1952 |
| details |
Nd |
|
Nd |
M¤dler,K.A. Hystrichophyta and acritarchs |
1967 |
| details |
Ordovician |
|
Romania |
Beju,D. The present stage of the palynological researches concerning the Antecretaceous of Romania. |
1971 |
| details |
Early Llandeilian |
|
Czechoslovakia |
VavrdovЎ,M. Palaeozoic microplankton from central Bohemia. |
1966 |
| details |
Arenigian |
|
Czechoslovakia |
VavrdovЎ,M. Ordovician acritarchs from Central Bohemia. |
1965 |
| details |
Early Tremadocian |
|
USSR(Estonian SSR) |
Yankauskas,T.V. et al. Micropaleontological characteristics of the Tremadocian Ulgase Member of Estonia. |
1972 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |