| details |
Early Gorstian |
Early Ludfordian |
Worldwide |
Paris,F. Chitinozoans. (In: A Global Standard for the Silurian System. C.H. Holland and M.G.Bassett, editors) |
1989 |
| details |
Gorstian |
|
USSR(Estonian SSR) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
Czechoslovakia(Bohemia) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
USSR(Latvian SSR) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
Belgium |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
China |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
Sweden(Gotland) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
New Guinea |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
England(Shropshire) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
USSR(Ukrainian SSR) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
Wales |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
France |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
Poland |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Gorstian |
|
Portugal |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Late Gorstian |
Early Ludfordian |
Baltic |
Paris,F. Chitinozoan biostratigraphy and palaeoecology. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Early Ludlovian |
Middle Ludlovian |
Italy(Sardinia) |
Dufka,P. et al. A report on Silurian and Lowermost Devonian chitinozoans from Southwestern Sardina |
1996 |
| details |
Gorstian |
|
Estonia |
Nestor,H. et al. Description of the Type Section,cyclicity, and correlation of the Riksu Formation (Wenlock, Estonia). |
2001 |