| details |
Early Arenigian |
|
China(Kweichow) |
Li,Y. Of Guizhou Province, southwest China Ordovician acritarchs from the Meitan Formtion. |
1987 |
| details |
Early Arenigian |
|
China(Kweichow) |
Li,J. Ordovician acritarchs from the Meitan Formation of Guizhou Province, South-Western China. |
1987 |
| details |
Vendian |
|
China(Tientsin) |
Mikhailova,N.C. et al. Microfosils from the Barzangin series of the Zeravshan-Gissarstructural-Facial zone of Southern Tien Shan |
1988 |
| details |
Late Riphean |
|
Spitsbergen |
Knoll,A.H. et al. Paleoenvironmental distribution of microfossils and Stromatolites in the Upper Proterozoic Backlundtoppen Formation, Spitsbergen. |
1989 |
| details |
Precambriam |
|
USSR |
Yankauskas,T.V. et al. Acritarch (Group acritarch,1963) classification. (In: Precambrian Microfossils of the USSR. T.V.Yankauskas, editor) |
1989 |
| details |
Late Riphean |
Ordovician |
USSR(Bashkir ASSR) |
German,T.N. et al. Systematic descriptions of microfossils. (In: Precambrian Microfossils of the USSR. T.V.Yankauskas, editor) |
1989 |
| details |
Early Riphean |
|
USSR(Siberia) |
Veis,A.F. et al. Microfossil association of the Omakhtin series (Lower Riphean) eastern Siberia; composition and Formation conditions |
1989 |
| details |
Arenigian |
|
China(Hunan) |
Li,J. Ordovician acritarchs from the Jiuxi Formation of Jishou, Hunan. |
1990 |
| details |
Early Ordovician |
|
USSR(Estonian SSR) |
Kheinsalu,K. et al. Cambrian-Ordovician boundary beds in the Saka Ii section, Northern East Estonia. |
1990 |
| details |
Early Ordovician |
|
USSR(Estonian SSR) |
Kheinsalu,K. et al. Cambrian-Ordovician boundary beds in the Saka Ii section, Northern East Estonia. |
1990 |
| details |
Ordovician |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Ludlovian |
Siedlce |
Poland |
Stempien,M. Ordovician and Silurian acritarchs of the Niestachow Sandstone Formation (Gory Swietokrzyskie Mountains) |
1990 |
| details |
Middle Ordovician |
Late Ordovician |
Estonia |
Paalits,I. Biostratigraphy: Acritarchs |
1990 |
| details |
Middle Riphean |
|
USSR(Urals) |
Veis,A.F. et al. Organic microfossils of the Riphean type section, Southern Ural |
1990 |
| details |
Late Riphean |
Vendian |
Ghana |
Veis,A.F. et al. Upper Precambrian microfossils of West Africa, Ghana |
1990 |
| details |
Middle Proterozoic |
|
China(Hopei) |
Yan,Y.-Z. Shale-Facies microflora from the Changzhougou Formation (Changcheng System) in Pangjiabu Region, Hebei, China. |
1991 |
| details |
Late Precambrian |
|
China(Shansi) |
Yan,Y.-Z. et al. Discovery of Acanthomorphic acritarchs from the Baicaoping Formation in Yongji, Shanxi and its geological significance. |
1992 |