| original |
Llandoverian |
|
USSR(Siberia) |
Zaslavskaya,A.M. Silurian chitinozoa of the Siberian Platform. (In: Silur Sibirskoi Platformy Graptolity i Khitinokhoi. Y.Tesakov, editor) |
1980 |
| details |
Late Llandoverian |
Early Wenlockian |
USSR(Russian Platform) |
Obut,A.M. et al. Complexes of Silurian Chitinozoa and Graptolite Zones of the Siberia and Russian Platforms, (Upper Llandoverian - Lower Wenlockian). (In: Paleontology and Detailed Stratigraphic Correlation) |
1982 |
| details |
Late Llandoverian |
Early Wenlockian |
USSR(Siberia) |
Obut,A.M. et al. Complexes of Silurian Chitinozoa and Graptolite Zones of the Siberia and Russian Platforms, (Upper Llandoverian - Lower Wenlockian). (In: Paleontology and Detailed Stratigraphic Correlation) |
1982 |
| details |
Llandoverian |
|
USSR(Siberia) |
Zaslavskaya,N.M. Silurian of Siberian Platform chitinozoa |
1983 |
| details |
Early Llandoverian |
|
USSR(Siberia) |
Zaslavskaya,N.M. Silurian of Siberian Platform chitinozoa |
1983 |
| details |
Middle Llandoverian |
|
USSR(Siberia) |
Zaslavskaya,N.M. et al. Silurian microfossils of the North-Western Siberian Platform. (In: Problems of Modern Palynology. A.F.Chlonova, editor) |
1984 |