| details |
Arenigian |
|
China(Szechwan) |
Brocke,R. Evaulation of the Ordovician acritarch genus Ampullula Righi |
1997 |
| details |
Proterozoic |
|
India(Himachal Pradesh) |
Srivastava,P. et al. Significance of the Meso-Neoproterozoic microfossil assemblage from the Deoban Limestone, Garhwai Lesser Himalaya. |
1997 |
| details |
Vendian |
|
India(Madhya Pradesh) |
Maithy,P.K. et al. Upper Vindhyan biota and Precambrian/Cambrian bound. |
1997 |
| details |
Cambrian |
|
Canada(Newfoundland) |
Williams,S.H. et al. Thermal maturity of potential paleozoic source rocks in Western Newfoundland. A report to Mobil Canada. |
1997 |
| details |
Late Ludlovian |
Emsian |
Germany(Saxony) |
Walter,H. et al. Paleozoic microfossils from the northern Margin of the Erzgebir Mountains, (Saxony). |
1998 |
| details |
Middle Anisian |
Late Anisian |
Barents Sea |
Vigran,J.O. et al. Biostratigraphy and sequence stratigraphy of the Lower and Middle Triassic deposits from the Svalis Dome, Central Barents Sea, Norway. |
1998 |
| details |
Late Proterozoic |
|
India(Himachal Pradesh) |
Gautam,R. et al. Large acanthomorphic acritarchs; their evolution, diversification and extinction across the Neoproterozoic; A case history from the Krol Formation, Lesser Himalaya, India. |
1998 |
| details |
Richmondian |
|
Missouri |
Wicander,R. et al. Taxonomic, biostratigraphic, and paleogeographic implications of an Upper Ordovician acritarch assemblage from the Maquoketa Shale, Northeastern Missouri, U.S.A. |
1998 |
| details |
Ordovician |
|
Finland |
Uutela,A. Extent of the Northern Baltic Sea during the Early Palaeozoic Era: New Evidence from Ostrobothnia, western Finland. |
1998 |
| details |
Oxfordian |
|
Alaska(North Slope) |
Mickey,M.B. et al. Biostratigraphy report 109 outcrop samples Western Delong Mountains field party North Slope, Alaska. (In: Micropaleontology of Cretaceous and Jurassic shales from the Northwestern Delong Mountains, Western Brooks Range, Alaska, 1994-1997. M.B.Mickey and H.Haga, editors) |
1998 |
| details |
Ordovician |
|
China(Anhwei) |
Chen,G. et al. Discovery and research of palaeontological fossils from the metamorphic rock area in South Anhui. |
1998 |
| details |
Late Ordovician |
|
Michigan |
Obermajer,M. et al. Application of acritarch fluorescence in thermal maturity study. |
1999 |
| details |
Cordevolian |
Julian |
Italy(Sardinia) |
Carrillat,A. et al. The Muschelkalk (Middle to Upper Triassic) of the Monte di Sant Siusta (northwest Sardinia): Sedimentology and biostratigraphy. |
1999 |
| details |
Early Eocene |
Early Miocene |
Japan(Shikoku I.) |
Narita,K. et al. Depositional age of the Tertiary Kuma Group, Shikoku, and its significance |
1999 |
| details |
Middle Arenigian |
|
China(Szechwan) |
Fatka,O. et al. Morphologic variability in two populations of Arbusculidium filamentosum (Vavrdova 1965), Vavrdova,1972. |
1999 |
| details |
Billingen |
|
Russia(St.Petersburg) |
Raevskaya,E.G. Early Arenig acritarchs from the Leetse Formation (St. Petersburg region, northwest Russia) and their palaeogeographic significance. |
1999 |
| details |
Late Tremadocian |
Early Arenigian |
S.Ireland(Kerry) |
Connery,C. et al. Tremadoc-Arenig acritarchs from the Annascaul Formation, Dingle Peninsula, County Kerry, Ireland. |
1999 |