| original |
Middle Llandoverian |
|
Paraguay |
Wood,G.D. et al. Distinctive Silurian chitinozoans from the Itacurubi Group (Bargas Pena Shale), Chaco Basin, Paraguay. |
1991 |
| details |
Rhuddanian |
Aeronian |
Saudi Arabia |
Paris,F. et al. Biostratigraphy and palaeogeographic affinities of Early Silurian chitinozoans from Central Saudi Arabia. (In: Palaeozoic Palynostratigraphy of the Kingdom of Saudi Arabia. B.Owens et al, editors) |
1995 |
| details |
Aeronian |
|
USSR(Estonian SSR) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Aeronian |
|
Saudi Arabia |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Late Rhuddanian |
Aeronian |
USSR(Latvian SSR) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Aeronian |
|
Canada(Quebec) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Aeronian |
|
Algeria |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Aeronian |
|
Libya |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Aeronian |
|
Sweden(Gotland) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Early Silurian |
|
Paraguay |
Miller,M.A. Chitinozoa. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Aeronian |
Llandoverian |
Paraguay |
Rubinstein,C.V. Silurian acritarchs from South America: A review. |
1996 |