| details |
Late Caradocian |
|
USSR(Ukrainian SSR) |
Tsegelnyuk,P.D. Ordovician stratigraphy of the Southwestern Region of the Russian Platform |
1980 |
| details |
Ashgillian |
|
USSR(Ukrainian SSR) |
Tsegelnyuk,P.D. Ordovician stratigraphy of the Southwestern Region of the Russian Platform |
1980 |
| details |
Pleistocene |
|
Poland |
Mierzejewski,P. Tem study on ultrastructure of chitinozoan vesicle wall. |
1981 |
| details |
Late Caradocian |
|
Sweden |
Grahn,Y. Middle Ordovician chitinozoa from Oland |
1981 |
| details |
Early Caradocian |
|
Sweden |
Grahn,Y. Ordovician chitinozoa from the Stora Asbotorp Boring in Vastergotland South-Central Sweden |
1981 |
| details |
Early Caradocian |
|
Sweden |
Schallreuter,R. Chitinozoans from the Sularp Shale (Middle Ordovician) of Skane, (Sweden). |
1981 |
| details |
Early Caradocian |
|
Sweden |
Grahn,Y. Early Caradoc chitinozoa from Ostergotland, south central Sweden. |
1982 |
| details |
Caradocian |
|
Sweden |
Grahn,Y. Caradocian and Ashgillian chitinozoa from the subsurface of Gotland |
1982 |
| details |
Caradocian |
Early Ashgillian |
Sweden |
Grahn,Y. Caradocian and Ashgillian chitinozoa from the subsurface of Gotland |
1982 |
| details |
Middle Ordovician |
|
USSR(Latvian SSR) |
Gailite,L.K. Chitinozoa. (In: The Ordovician of Latvia. R.Z.H.Ulst et al, editor) |
1982 |
| details |
Middle Ordovician |
|
USSR(Latvian SSR) |
Gailite,L.K. Chitinozoa. (In: The Ordovician of Latvia. R.Z.H.Ulst et al, editor) |
1982 |
| details |
Early Cincinnatian |
|
Canada(Quebec) |
Martin,F. Ordovician chitinozoa and acritarchs of the Saint-Laurent Platform, (Quebec and Southeast Ontario). |
1983 |
| details |
Llanvirnian |
Llandeilian |
Morocco |
Rahmani,K. Palynologic study of Paleozoic (Ordovician, Silurian, Devonian) of the Rabat Region, (Oued Bou-Regreg), Morocco. |
1983 |
| details |
Early Caradocian |
Middle Caradocian |
USSR(Estonian SSR) |
Grahn,Y. Ordovician chitinozoa from Tallinn, Norther Estonia. |
1984 |
| details |
Ordovician |
|
USSR(Uzbek SSR) |
Khan,R.S. et al. Stratigraphy of Ordovician deposits of Mountain Yuzhii Nuratai |
1986 |
| details |
Arenigian |
Ashgillian |
USA(Western) |
Hutter,T.J. Ordovician chitinozoan zones of Great Basin |
1987 |
| details |
Ashgillian |
|
USSR(Ukrainian SSR) |
Tsegelnyuk,P.D. On the question of the history of the geological evolution of Volyno-Podolskaya in the Ordovician and Silurian |
1989 |