| details |
Late Ordovician |
Early Gothlandian |
USSR(Pskov) |
Nolvak,J. et al. The Taucionys Formation (Holorhynchus Beds) in the Iljinskoje Boring (Pskov District). |
1989 |
| details |
Ludlovian |
Pridolian |
Czechoslovakia |
Kriz,J. The Pridoli Series in the Prague Basin (Barrandian area, Bohemia). (In: A Global Standard for the Silurian System. C.H. Holland and M.G.Bassett, editors) |
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 |
Wenlockian |
|
USSR(Estonian SSR) |
Nestor,V. On the distribution of Aberrant forms of chitinozoans in the Silurian of Estonia and West Latvia |
1990 |
| details |
Nd |
|
Nd |
Zaslavskaya,N.M. On the morphology and systematics of chitinozoa. (In: Problematic Fossils of the USSR. B.S.Sokolov, editors) |
1990 |
| details |
Late Harju |
|
Estonia |
Nolvak,J. Biostratigraphy: Ordovician chitinozoans |
1990 |
| details |
Early Wenlockian |
|
Baltic |
Rubel,M. et al. Wenlock and Ludlov of North and West Saaremaa: locality 6:1 Pan Cliff |
1990 |
| details |
Early Llandoverian |
|
Estonia |
Nestor,H. Locality 7:4 Ohesaare Cliff |
1990 |
| details |
Sheinwoodian |
|
Denmark |
Smelror,M. Palynomorphs from the Cyrtograptys centrifugus Graptolite zone (Early Wenlock, Silurian) Bornholm. |
1991 |
| details |
Wenlockian |
Gedinnian |
Libya |
Tekbali,A.O. et al. Silurian spores, acritarchs and chitinozoans from the Bani Walid Borehole of the Ghadamis Basin, Northwest Libya. (In: The Geology of Libya. M.J.Salem et al, editors) |
1991 |
| details |
Late Ordovician |
Early Llandoverian |
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 |
Sheinwoodian |
Early Homerian |
Czechoslovakia(Bohemia) |
Dufka,P. Lower Silurian chitinozoans of the Prague Basin (Barrandian, Czechoslovakia)-Preliminary results. |
1992 |
| details |
Late Telychian |
Wenlockian |
Scotland(Dumfries) |
White,D.E. et al. Biostratigraphy of Late Llandovery (Telychian) and Wenlock Turbiditic sequences in the southwest Southern Uplands, Scotland. |
1992 |
| details |
Late Gothlandian |
|
Brazil(Amazonas) |
Grahn,Y. Revision of Silurian and Devonian strata in Brazil |
1992 |
| details |
Silurian |
|
China(Szechwan) |
Wang,X. et al. On the determination of chitinozoa species-With reference to the Conochitina brevis example. |
1992 |
| details |
Ashgillian |
|
Baltic |
Nolvak,J. et al. Ordovician chitinozoan zones from Baltoscandia |
1993 |
| details |
Ashgillian |
|
Scandinavia |
Nolvak,J. et al. Ordovician chitinozoan zones from Baltoscandia |
1993 |