| details |
Vendian |
Early Cambrian |
USSR(Leningrad) |
German,T.N. et al. Systematic descriptions of microfossils. (In: Precambrian Microfossils of the USSR. T.V.Yankauskas, editor) |
1989 |
| details |
Early Cambrian |
|
Poland |
Gunia,T. Acritarcha and microproblematica of the Crystalline Limestones from the vicinity of Romanowo Gorne, (Central Sudetes Mountains, Krowiarki) |
1989 |
| details |
Tremadocian |
Arenigian |
Spain |
Mette,W. Acritarchs from Lower Paleozoic rocks of the Western Sierra Morena, southwest Spain and biostratigraphic results. |
1989 |
| details |
Tremadocian |
|
Estonia |
Volkova,N.A. Acritarchs from the Cambrian-Ordovician boundary sediments of northern Estonia |
1989 |
| details |
Late Cambrian |
Early Tremadocian |
USSR(Estonian SSR) |
Volkova,N.A. Acritarchs of the Desposits of the Cambrian-Ordovician boundary northern Estonia |
1989 |
| details |
Aalenian |
Oxfordian |
France(Alsace) |
Rauscher,R. et al. Palynological investigations in the Jurassic of the Alsace (northeast France). |
1990 |
| original |
Middle Kimmeridgian |
|
W.Germany(Niedersachsen) |
Kunz,R. Phytoplankton and palynofacies in the Malm of northwest Germany, (Hannoversches Bergland). |
1990 |
| details |
Early Oligocene |
|
Morocco |
Rauscher,R. et al. Sedimentary phosphates, an unusual environment for organic matter preservation. Organic geochemical and palynological contributions |
1990 |
| details |
Early Cambrian |
|
Sweden |
Eklund,C. Lower Cambrian acritarch stratigraphy of the Barstad 2 core, Ostergotland, Sweden. |
1990 |
| details |
Late Muschelkalk |
Early Keuper |
W.Germany(N.Rhine) |
Heunisch,C. Palynology of the Well "Natzungen 1979" Map No.4321 Borgholz (Triassic, Upper Muschelkalk 2,3, Lower Keuper). |
1990 |
| details |
Early Callovian |
|
Iran |
Wheeler,J.W. et al. Jurassic and Cretaceous palynomorphs from the Central Alborz Mountains, Iran; Their significance in biostratigraphy and palaeogeography. |
1990 |
| details |
Tournaisian |
|
Morocco |
Bouabdelli,M. et al. New palynological dates from the sandstones and conglomerates of the Migoumess Formation, (Eastern Central Hercynian Massif of Morocco). |
1990 |
| details |
Early Pridolian |
Late Ludfordian |
England(Herefordshire) |
Richardson,J.B. et al. Palynofacies in a Late Silurian regressive sequence in the Welsh Borderland and Wales |
1990 |
| details |
Pridolian |
|
England(Shropshire) |
Richardson,J.B. et al. Palynofacies in a Late Silurian regressive sequence in the Welsh Borderland and Wales |
1990 |
| details |
Arenigian |
|
England(Cumberland) |
Molyneux,S.G. Advances and problems in Ordovician palynology in England and Wales |
1990 |
| details |
Arenigian |
Llanvirnian |
Wales(Caernarvonshire) |
Molyneux,S.G. Advances and problems in Ordovician palynology in England and Wales |
1990 |
| details |
Rhaetian |
Hettangian |
USSR(Georgian SSR) |
Adamiya,S.A. et al. The Rhaetian-Hettangian deposits of the Diza Group in Svanetia (Greater Caucasus) |
1990 |