| original |
Llandeilian |
|
Baltic |
Eisenack,A. New Mikrofossils of the Baltic Silurian.1. |
1931 |
| details |
Llanvirnian |
|
Poland |
Bednarczyk,W.S. Chitinozoa-bearing horizons in the Ordovician of Northern Poland in the light of conodont stratigraphy. |
1999 |
| details |
Late Cambrian |
Middle Ordovician |
Sweden |
Bergstrom,J. et al. A new cutting through Upper Cambrian and Middle Ordovician in the Ravatofta District, Scania. |
1967 |
| details |
Late Ordovician |
|
Baltic |
Nolvak,J. Results of quantitative stratigraphic correlation of the Upper Ordovician in the Baltic;Chitinozoans. (In: Quantitative Stratigraphy: Retrospective Evaluation and Future Development. A. Oleynikov and M. Rubel editors) |
1989 |
| details |
Early Ordovician |
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 |
Ordovician |
|
Nd |
Kozlowski,R. On the nature of chitinozoans. |
1963 |
| details |
Caradocian |
|
Sweden |
Laufeld,S. Caradocian chitinozoa from Dalarna, Sweden. |
1967 |
| details |
Ordovician |
|
E.Germany(Potsdam) |
Eisenack,A. The microfauna of the Ostseekalke. 1. Chitinozoa, Hystrichosphaeres. |
1965 |
| details |
Caradocian |
|
USSR(Estonian SSR) |
Eisenack,A. The microfauna of the Ostseekalke. 1. Chitinozoa, Hystrichosphaeres. |
1965 |
| details |
Silurian |
|
Baltic |
Collinson,C. et al. North American Paleozoic Chitinozoa |
1955 |
| details |
Llandeilian |
|
Baltic |
Eisenack,A. New Mikrofossils of the Baltic Silurian.1. |
1931 |
| details |
Arenigian |
|
Algeria |
Deunff,J. et al. Palynoplanktonic correlation in the Cambro-Ordovician of the Sahara |
1961 |
| details |
Late Tremadocian |
Ludlovian |
Europe |
Taugourdeau,P. Techniques of study, morphology and classification of chitinozoans. |
1966 |
| details |
Ashgillian |
|
USSR(Ukrainian SSR) |
Tsegelnyuk,P.D. On the question of the history of the geological evolution of Volyno-Podolskaya in the Ordovician and Silurian |
1989 |
| details |
Caradocian |
|
Scandinavia |
Nolvak,J. et al. Ordovician chitinozoan zones from Baltoscandia |
1993 |
| details |
Silurian |
|
Nd |
Deflandre,G. Groups Incertae Sedis.Hystrichospheres. chitinozoans. |
1952 |