| details |
Tremadocian |
|
Estonia |
Volkova,N.A. Acritarchs from the Cambrian-Ordovician boundary sediments of northern Estonia |
1989 |
| details |
Vendian |
|
USSR(Kazakh SSR) |
Grigaitis,R.K. et al. New Palaeontological data regarding Precambrian deposits of Yuzhnogo Alatau, Central Kazakhstan |
1989 |
| details |
Late Cambrian |
|
USSR(Estonian SSR) |
Volkova,N.A. Acritarchs of the Desposits of the Cambrian-Ordovician boundary northern Estonia |
1989 |
| details |
Late Riphean |
Early Vendian |
Norway |
Vidal,G. Giant Acanthomorph acritarchs from the Upper Proterozoic in Southern Norway |
1990 |
| details |
Early Cambrian |
|
USSR(Tomskaya Oblast) |
Volkova,N.A. et al. The All-Union Conference on acritarchs of the Precambrian and Lower Paleozoic |
1990 |
| details |
Late Precambrian |
|
China(Hopei) |
Yin,C.-Y. Spinose acritarchs from the Toushantou Formation in the Yangtze Gorges and its geological significance. |
1990 |
| details |
Late Nammalian |
Sinemurian |
New Zealand |
de Jersey,N.J. et al. Triassic and Earliest Jurassic miospores from the Murihiku Supergroup, New Zealand. |
1990 |
| details |
Late Nammalian |
Rhaetian |
New Zealand |
de Jersey,N.J. et al. Triassic and Earliest Jurassic miospores from the Murihiku Supergroup, New Zealand. |
1990 |
| details |
Late Eocene |
Middle Oligocene |
Argentina(Tierra) |
Zamaloa,M.C. et al. Some spores and pollen from the Cullen Formation (Upper Eocene to Middle Oligocene) Tierra del Fuego, Argentina. |
1990 |
| details |
Late Permian |
|
South Africa |
Horowitz,A. Palynology and paleoenvironment of uranium deposits in the Permian Beaufort Group, South Africa. (In: Palynology of Ore Deposits. E.I. Robbins, editor) |
1990 |
| details |
Late Proterozoic |
|
India(Uttar Pradesh) |
Nautiyal,A.C. et al. First record of Upper Proterozoic microbiota, (Zone IV), in 'Tirohan Limestone' and Upper Green Sandstone (Semri Group) of Lachman-Pahari, (southwest of Chitrakut, Banda District), Uttar Pradesh. |
1990 |
| details |
Early Ladinian |
|
Bulgaria |
Petrunova-Olova,L. Middle and Upper Triassic palynology zones from Northwest Bulgaria (Preliminary results) |
1990 |
| details |
Ludlovian |
Siedlce |
Poland |
Stempien,M. Ordovician and Silurian acritarchs of the Niestachow Sandstone Formation (Gory Swietokrzyskie Mountains) |
1990 |
| details |
Llanvirnian |
Baoto |
China(Szechwan) |
Lai,C.-G. et al. Restudy on Ordovician of Southern Shaanxi-Northern Sichuan areas. |
1990 |
| details |
Llanvirnian |
Baoto |
China(Shansi) |
Lai,C.-G. et al. Restudy on Ordovician of Southern Shaanxi-Northern Sichuan areas. |
1990 |
| details |
Late Volkov |
Aseri |
Estonia |
Magi,S. Locality 4:2 Cntika Clint |
1990 |
| details |
Cambrian |
|
W.Germany(Bavaria) |
Pflug,H.D. et al. Palynostratigraphical and paleobotanical studies in the Pilot Hole of the German Continental deep Drilling Program; Results and implications. |
1991 |