| details |
Ordovician |
Silurian |
Baltic |
Eisenack,A. Chitinozoa of the Baltic Region. |
1968 |
| details |
Late Llanvirnian |
Middle Caradocian |
USSR(Estonian SSR) |
Grahn,Y. Ordovician chitinozoa from Tallinn, Norther Estonia. |
1984 |
| details |
Late Llanvirnian |
Llandeilian |
Sweden |
Grahn,Y. Middle Ordovician chitinozoa from Oland |
1981 |
| details |
Llanvirnian |
Llandeilian |
Morocco |
Rahmani,K. Palynologic study of Paleozoic (Ordovician, Silurian, Devonian) of the Rabat Region, (Oued Bou-Regreg), Morocco. |
1983 |
| details |
Middle Ordovician |
Late Ordovician |
Europe |
Taugourdeau,P. et al. Chitinozoans-Illustrated bibliographic analysis |
1967 |
| details |
Arenigian |
Late Devonian |
Scotland |
Downie,C. et al. A palynological investigation of the Dalradian rocks of Scotland. |
1971 |
| details |
Uhaku |
Johvi |
USSR(Estonian SSR) |
Grahn,Y. et al. Precise chitinozoan dating of Ordovician impact events in Baltoscandia. |
1996 |
| details |
Vendian |
Early Paleozoic |
USSR(Kazakh SSR) |
Sargaskaev,Z.S. et al. Some chitinozoans in the Kokzhotsk series of the Karatai range |
1988 |
| details |
Late Arenigian |
Early Llanvirnian |
Sweden |
Grahn,Y. Chitinozoophoran palaeoecology in the Ordovician of Oland |
1982 |
| details |
Llanvirnian |
Early Caradocian |
Baltic |
Nolvak,J. et al. Ordovician chitinozoan zones from Baltoscandia |
1993 |
| details |
Llanvirnian |
Early Caradocian |
Scandinavia |
Nolvak,J. et al. Ordovician chitinozoan zones from Baltoscandia |
1993 |
| details |
Llanvirnian |
Early Ashgillian |
Finland |
Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. |
1989 |
| details |
Middle Ordovician |
|
USSR(Leningrad) |
Obut,A.M. On the geographical distribution, comparative morphology, ecology, phylogeny, and the taxonomic position of chitinozoa. |
1973 |
| details |
Early Caradocian |
|
France(Finistere) |
Henry,J.L. et al. Chitinozoans, ostracods and trilobites of the Ordovician of Portugal, (Serra de Bucaco), and the Amorician Massif: Attempt at comparison and paleogeographic significance. |
1974 |
| details |
Early Caradocian |
|
Portugal |
Henry,J.L. et al. Chitinozoans, ostracods and trilobites of the Ordovician of Portugal, (Serra de Bucaco), and the Amorician Massif: Attempt at comparison and paleogeographic significance. |
1974 |
| details |
Late Caradocian |
|
Sweden |
Grahn,Y. Middle Ordovician chitinozoa from Oland |
1981 |
| details |
Early Caradocian |
|
Sweden |
Grahn,Y. Ordovician chitinozoa from the Stora Asbotorp Boring in Vastergotland South-Central Sweden |
1981 |