| original |
Downtonian |
|
Poland |
Eisenack,A. Chitinozoans and other micro-fossils from the Leba-Bore, Pomerania. |
1972 |
| details |
Nd |
|
Nd |
Cramer,F.H. et al. Iberian chitinozoans |
1978 |
| details |
Llandoverian |
|
USSR(Siberia) |
Zaslavskaya,A.M. Silurian chitinozoa of the Siberian Platform. (In: Silur Sibirskoi Platformy Graptolity i Khitinokhoi. Y.Tesakov, editor) |
1980 |
| details |
Nd |
|
Nd |
Schweineberg,J. Silurian chitinozoa from the Palencia Province (Cantabrian Mountains, North Spain). |
1987 |
| details |
Downtonian |
|
Poland |
Jaglin,J.-C. et al. Biostratigraphy, biodiversity and palaeogeography of late Silurian chitinozoans from A1-61 borehole (north-western Libya) |
2002 |
| details |
Late Ludfordian |
|
Libya |
Jaglin,J.-C. et al. Biostratigraphy, biodiversity and palaeogeography of late Silurian chitinozoans from A1-61 borehole (north-western Libya) |
2002 |