| details |
Wenlockian |
Pridolian |
Spain |
Schweineberg,J. Silurian chitinozoa from the Palencia Province (Cantabrian Mountains, North Spain). |
1987 |
| details |
Silurian |
|
Nd |
Laufeld,S. Paleoecology of Silurian chitinozoans. |
1977 |
| details |
Silurian |
|
Sweden |
Nestor,V.K. Correlation Fo the East-Baltic and Gotland Silurian by chitinozoans. |
1982 |
| details |
Silurian |
|
USSR(Estonian SSR) |
Nestor,V.K. Correlation Fo the East-Baltic and Gotland Silurian by chitinozoans. |
1982 |
| details |
Silurian |
|
Sweden |
Eisenack,A. Microfossils of the Silurian from Gotland |
1964 |
| details |
Ordovician |
Silurian |
Baltic |
Collinson,C. et al. North American Paleozoic Chitinozoa |
1955 |
| details |
Ordovician |
Silurian |
Baltic |
Eisenack,A. Chitinozoa of the Baltic Region. |
1968 |
| details |
Nd |
|
Nd |
Paris,F. Chitinozoan biostratigraphy and palaeoecology. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Middle Gothlandian |
Late Gothlandian |
Spain |
Cramer,F.H. et al. Taxonomic considerations on the acritarchs of the Middle and Upper Silurian of northern Spain. |
1968 |
| details |
Ludlovian |
|
Europe |
Jenkins,W.A.M. et al. Stratigraphic ranges of selected chitinozoa. |
1979 |
| details |
Ludlovian |
|
USSR(Russian Platform) |
Umnova,N.I. Ordovician and Silurian chitinozoa from the northern part of the Russian Platform. |
1981 |
| details |
Ludlovian |
|
England(Shropshire) |
Dorning,K.J. Silurian chitinozoa from the type Wenlock and Ludlow of Shropshire, England. |
1981 |
| details |
Ludlovian |
|
China(Anhwei) |
Hou,J.-P. et al. Chitinozoan biostratigraphy in China |
1982 |
| details |
Ludlovian |
|
USSR(Ukrainian SSR) |
Tsegelnyuk,P.D. The Dniester key section of the Silurian. (In: Stratigraphy of the USSR, Silurian.) |
1974 |
| details |
Ludlovian |
Ludfordian |
USSR(Estonian SSR) |
Nestor,V. et al. Dating of the Wenlock Carbonate sequences in Estonian and stratigraphicheskie Pereryvy |
1990 |
| details |
Ludlovian |
|
Europe |
Taugourdeau,P. et al. Chitinozoans-Illustrated bibliographic analysis |
1967 |
| details |
Ludlovian |
|
Sweden |
Laufeld,S. Silurian chitinozoa from Gotland. |
1974 |