| details |
Wenlockian |
Ludlovian |
Sweden |
Laufeld,S. Silurian chitinozoa from Gotland. |
1974 |
| details |
Caradocian |
|
France(Finistere) |
Deunff,J. Planktonic microorganisms of the Breton Paleozoic. 1. The Ordovician of Veryhach (Crozon Peninsula). |
1959 |
| details |
Wenlockian |
|
Sweden |
Eisenack,A. Chitinozoa from sediments from Gotland. |
1962 |
| details |
Llandoverian |
|
Sweden |
Eisenack,A. Chitinozoa from sediments from Gotland. |
1962 |
| details |
Late Gothlandian |
|
USSR(Baltic) |
Eisenack,A. New microfossils of the Baltic Silurian. IV. |
1938 |
| details |
Wenlockian |
Pridolian |
Spain |
Schweineberg,J. Silurian chitinozoa from the Palencia Province (Cantabrian Mountains, North Spain). |
1987 |
| details |
Middle Gothlandian |
Late Gothlandian |
Europe |
Taugourdeau,P. et al. Chitinozoans-Illustrated bibliographic analysis |
1967 |
| details |
Gothlandian |
|
Tunisia |
Grignani,D. Correlation with Chttinozoa in the Devonian and Silurian in some Tunisian Well samples. |
1967 |
| details |
Early Homerian |
|
Czechoslovakia(Bohemia) |
Dufka,P. Lower Silurian chitinozoans of the Prague Basin (Barrandian, Czechoslovakia)-Preliminary results. |
1992 |
| details |
Late Wenlockian |
Early Ludlovian |
Brazil(Amazonas) |
Grahn,Y. et al. Age and correlation of the Trombetas Group, Amazonas Basin, Brazil. |
1992 |
| details |
Wenlockian |
Ludlovian |
USSR(Estonian SSR) |
Nestor,V. et al. Dating of the Wenlock Carbonate sequences in Estonian and stratigraphicheskie Pereryvy |
1990 |
| details |
Late Ordovician |
|
France(Manche) |
Rauscher,R. et al. Associations of chitinozoans of Normandy and comparisons with fauna already described. |
1967 |
| details |
Early Ludlovian |
|
Nd |
Lister,T.R. et al. New evidence for the age of the primitive Echinoid Myriastiches gigas |
1967 |
| details |
Late Llandoverian |
Early Ludlovian |
Europe |
Taugourdeau,P. Techniques of study, morphology and classification of chitinozoans. |
1966 |
| details |
Llandoverian |
|
France |
Graindor,M.-J. et al. Chitinozoans of the Silurian-Devonian in the northern Massif Armoricain |
1966 |
| details |
Silurian |
|
Baltic |
Collinson,C. et al. North American Paleozoic Chitinozoa |
1955 |
| details |
Silurian |
|
Sweden |
Eisenack,A. Microfossils of the Silurian from Gotland |
1964 |