| details |
Late Ludfordian |
|
Worldwide |
Paris,F. Chitinozoans. (In: A Global Standard for the Silurian System. C.H. Holland and M.G.Bassett, editors) |
1989 |
| details |
Ludfordian |
|
USSR(Estonian SSR) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Late Ludfordian |
|
Czechoslovakia(Bohemia) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Ludfordian |
|
USSR(Latvian SSR) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Ludfordian |
|
Algeria |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Ludfordian |
|
Belgium |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Ludfordian |
|
Libya |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Ludfordian |
|
Sweden(Gotland) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Ludfordian |
|
Spain |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Ludfordian |
|
England(Shropshire) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Late Ludfordian |
|
USSR(Ukrainian SSR) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Late Ludfordian |
|
Wales |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Ludfordian |
|
Worldwide |
Paris,F. Chitinozoan biostratigraphy and palaeoecology. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |