| details |
Late Precambrian |
Cambrian |
India(Andhra Pradesh) |
Salujha,S.K. et al. Early Palaeozoic microplankton from the Kurnools, Andhra Pradesh. |
1972 |
| details |
Tremadocian |
Arenigian |
Romania |
Beju,D. Zoning and correlation of the Paleozoic of the Moesian Platform on the basis of palynoprotistological assemblages.1. |
1972 |
| details |
Middle Ordovician |
|
Sweden |
Myannil,R.M. Chitinozoan correlation of the Upper Viruan (Middle Ordovician) rocks of Sweden and the East Baltic area. |
1972 |
| details |
Middle Ordovician |
|
USSR(Latvian SSR) |
Myannil,R.M. Chitinozoan correlation of the Upper Viruan (Middle Ordovician) rocks of Sweden and the East Baltic area. |
1972 |
| details |
Middle Ordovician |
|
USSR(Baltic) |
Myannil,R.M. Chitinozoan correlation of the Upper Viruan (Middle Ordovician) rocks of Sweden and the East Baltic area. |
1972 |
| details |
Tatarian |
|
USSR(Urals) |
Tuzhikova,V.I. Tasmanites-like microfossils in Triassic sediments of the Urals. |
1972 |
| details |
Early Cambrian |
|
USSR(Lithuanian SSR) |
Yankauskas,T.V. Stratigraphic subdivision of the Lower Cambrian of Lithuania using acritarchs |
1972 |
| original |
Late Precambrian |
Early Gothlandian |
India(Rajasthan) |
Salujha,S.K. Palynological evidence on the age of the Vindhyan sediments |
1973 |
| details |
Middle Cambrian |
|
USSR(Russian Platform) |
Volkova,N.A. Acritarchs and Correlaiton of the Vendian and Cam Brian deposits in the West of the Russian Platform |
1973 |
| details |
Early Cambrian |
|
USSR(Estonian SSR) |
Yankauskas,T.V. et al. Micropaleotological characteristic of the stratotype sections of the Estonian Lower Cambrian. |
1973 |
| details |
Early Cambrian |
|
USSR(Irkutskaya Oblast) |
Faizulina,Z.K. et al. Microfossils from the Lower Cambrian deposits of the Irkutsk Amphitheatre. (In: Microfossils of the Oldest Deposits) |
1973 |
| details |
Early Ordovician |
|
Sweden |
Eisenack,A. Microorganisms as destroyer of acid-resistant organic substances and of Biophosphates. |
1973 |
| details |
Middle Devonian |
|
Canada(Ontario) |
Legault,J.A. Chitinozoa and acritarcha of the Hamilton Formation, (Middle Devonian), southwestern Ontario. |
1973 |
| details |
Early Devonian |
|
USA |
Downie,C. Observations on the nature of the acritarchs |
1973 |
| details |
Middle Cambrian |
Middle Triassic |
Nd |
Downie,C. Observations on the nature of the acritarchs |
1973 |
| details |
Senonian |
|
Italy |
Corradini,D. Non-calcareous microplankton from the Upper Cretaceous of the northern Apennines. |
1973 |
| details |
Late Permian |
Early Triassic |
Israel |
Horowitz,A. Late Permian palynomorphs from southern Israel. |
1973 |