| details |
Early Soudleyan |
|
Wales(Powys) |
Cave,R. et al. Age of the Ordovician Andesitic Conglomerate of Castle Hill, Montgomery, Powys, Wales |
1988 |
| details |
Middle Algonkian |
|
India(Orissa) |
Nautiyal,A.C. Middle Algonkian microfloras (Microfaunas) of Manganese Ore-bearing sediments of Orissa, Eastern India. |
1988 |
| details |
Ordovician |
|
Worldwide |
Grahn,Y. Chitinozoan stratigraphy in the Ashgil and Llandovery. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) |
1988 |
| details |
Rawtheyan |
|
Libya |
Paris,F. Late Ordovician and Early Silurian chitinozoans from Central and Southern Cyrenaica. (In: The Subsurface Palynostratigraphy of Northeast Libya. Special Publication of the University of Garryounis, Libya. E.Arnauti et al, editors) |
1989 |
| details |
Late Hirnantian |
|
Libya |
Paris,F. Late Ordovician and Early Silurian chitinozoans from Central and Southern Cyrenaica. (In: The Subsurface Palynostratigraphy of Northeast Libya. Special Publication of the University of Garryounis, Libya. E.Arnauti et al, editors) |
1989 |
| details |
Early Ordovician |
|
USSR(Dzhambulskaya) |
Zhemchuzhnikov,V.G. et al. The position of the Dzhanytas series in the Lesser Karatau section in connection with the discovery of chitinozoans |
1989 |
| details |
Nd |
|
Nd |
Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. |
1989 |
| details |
Llanvirnian |
Early Caradocian |
Finland |
Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. |
1989 |
| details |
Nd |
|
Nd |
Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. |
1989 |
| details |
Nd |
|
Nd |
Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. |
1989 |
| details |
Nd |
|
Nd |
Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. |
1989 |
| details |
Late Llanvirnian |
Early Caradocian |
USSR(Estonian SSR) |
Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. |
1989 |
| details |
Late Ordovician |
Early Gothlandian |
USSR(Pskov) |
Nolvak,J. et al. The Taucionys Formation (Holorhynchus Beds) in the Iljinskoje Boring (Pskov District). |
1989 |
| original |
Middle Algonkian |
|
India(Bihar) |
Nautiyal,A.C. Middle Proterozoic microfloras (microfaunas) from Banded Hematite Jasper of Kiriburu and Meghatuburu areas (Singhbhum District, Bihar), Eastern India. |
1989 |
| original |
Middle Algonkian |
|
India(Bihar) |
Nautiyal,A.C. Middle Proterozoic microfloras (microfaunas) from Banded Hematite Jasper of Kiriburu and Meghatuburu areas (Singhbhum District, Bihar), Eastern India. |
1989 |
| details |
Late Ordovician |
|
Baltic |
Nolvak,J. Results of quantitative stratigraphic correlation of the Upper Ordovician in the Baltic;Chitinozoans. (In: Quantitative Stratigraphy: Retrospective Evaluation and Future Development. A. Oleynikov and M. Rubel editors) |
1989 |
| details |
Middle Proterozoic |
|
India(Uttar Pradesh) |
Nautiyal,A.C. Microfacies microfossils (Organic-walled) in Middle Proterozoic Tejam Group of Keemaun Lesser Himalaya and paleoenvironmental significance |
1990 |