| details |
Late Ladinian |
|
Bulgaria |
Petrunova-Olova,L. Middle and Upper Triassic palynology zones from Northwest Bulgaria (Preliminary results) |
1990 |
| details |
Early Ludlovian |
Middle Ludlovian |
Argentina(San Juan) |
Rubinstein,C.V. Acritarchs from the Silurian of the Jachal River Valley (Los Espejos Formation) San Juan Province, Republic Argentina Subgroups: Prismatomorphitae, Pteromorphitae and acritarchs of Uncertain location |
1990 |
| details |
Late Muschelkalk |
Keuper |
W.Germany(Bavaria) |
Bergen,P.F.Van et al. Palynofacies and sedimentary environments of a Triassic section in Southern Germany. (In: Proceedings International Symposium on the organic petrology (W.J.J.Fermont and J.W.Weegink, editors) |
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 Carnian |
Tuvalian |
Italy(Sicily) |
Cirilli,S. et al. Palynomorphs from the Lercara Formation (Sicily): New biostratigraphic data. |
1990 |
| details |
Frasnian |
|
USSR(Kaliningrad) |
Yalysheva,A.A. Palynostratigraphy of Devonian deposits. (In: Practical Palynostratigraphy. L.A. Panova et al, editors) |
1990 |
| details |
Induan |
Olenikian |
USSR(Moscow Basin) |
Romanovskaya,G.M. et al. Palynostratigraphy of Triassic deposits. (In: Practical Palynostratigraphy. L.A. Panova et al, editors) |
1990 |
| details |
Late Ordovician |
Triassic |
Canada(Saskatchewan) |
Stasiuk,L.D. et al. Organic microfacies and basinal tectonic control on source rock accumulation; A microscopic approach with examples from an intracratonic and extensional basin. (In: Recent Advances in Organic Petrology and Geochemistry; A Symposium Honoring Dr P.Hacquebard. W.Kalkreuth et al, editors) |
1991 |
| details |
Middle Llandoverian |
|
Paraguay |
Wood,G.D. et al. Distinctive Silurian chitinozoans from the Itacurubi Group (Bargas Pena Shale), Chaco Basin, Paraguay. |
1991 |
| details |
Late Spathian |
Middle Anisian |
Arctic Ocean(Barents Sea) |
Mangerud,G. et al. Spathian-Anisian (Triassic) palynology at the Svalis Dome, Southwestern Barents Sea |
1991 |
| details |
Early Serpukhovian |
|
Canada(Yukon) |
Utting,J. Lower Carboniferous miospore assemblages from the Hart River Formation, Northern Yukon Territory. |
1991 |
| details |
Late Carnian |
|
Italy(Sicily) |
Martini,R. et al. Sedimentology and biostratigraphy of the Triassic Mufara Formation (Eastern Sicily); Foraminifera, conodonts, palynomorphs. |
1991 |
| details |
Late Hettangian |
Early Sinemurian |
Denmark |
Koppelhus,E.B. Palynology of the Lower Jurassic Ronne Formation on Bornholm, Eastern Denmark. |
1991 |
| details |
Early Berriasian |
|
Tunisia |
Leloux,J. Dinoflagellates of the Sidi Khalif Formation at the Jb.Meloussi, Central Tunisia. |
1991 |
| details |
Late Permian |
|
Greenland |
Piasecki,S. et al. Late Permian Anoxia in Central East Greenland. (In: Modern and Ancient Continental Shelf Anoxia. R.V.Tyson and T.H.Pearson, editors) |
1991 |