| details |
Ediacaran |
|
Australia(N.Territory) |
Zang,W. Late Proterozoic and Cambrian acritarchs. (In: Late Proterozoic and Early Palaeozoic Palaeontology and biostratigraphy of the Amadeus Basin. J.H.Shergold et al. (In: Geological and Geophysical studies in the Amadeus Basin, Central Australia. R.J.Korsch and J.M. Kennard, editors) |
1991 |
| details |
Middle Miocene |
Late Miocene |
India(Assam) |
Kumar,A. et al. Palynology of the Tertiary sediments of Southern Assam, India. |
1991 |
| details |
Arenigian |
Llandeilian |
Belgium |
Servais,T. Contribution to the stratigraphy of the Ordovician Rigenee Formation (Brabant Massif, Belgium) with a preliminary study on acritarchs. |
1991 |
| details |
Ashgillian |
|
Wales(Powys) |
Barron,H.F. Moyeria carbottii from the Ordovician of Wales, United Kingdom. |
1991 |
| details |
Caradocian |
|
Wales(Gwynedd) |
Barron,H.F. Moyeria carbottii from the Ordovician of Wales, United Kingdom. |
1991 |
| details |
Scythian |
|
Libya |
Grignani,D. et al. Palaeozoic and Mesozoic subsurface palynostratigraphy in the Al Kufrah Basin, Libya. (In: The Geology of Libya. M.J.Salem et al, editors) |
1991 |
| 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 |