| details |
Ashgillian |
|
Canada(Anticosti Island) |
Achab,A. Palynology. (In. Stratigraphy, source rock potential mineral and source diagenesis of the new associate associated colsolidated paper. (N.A.C.P.) Anticosti No.1 Bore-Hole Anticosti Island. A.Achab, editor) |
1976 |
| details |
Late Ordovician |
|
England |
Achab,A. Provincialism of Ordovician chitinozoans. |
1988 |
| details |
Late Ordovician |
|
Africa |
Achab,A. Provincialism of Ordovician chitinozoans. |
1988 |
| details |
Late Ordovician |
|
Europe |
Achab,A. Provincialism of Ordovician chitinozoans. |
1988 |
| details |
Late Ordovician |
|
Scotland |
Achab,A. Provincialism of Ordovician chitinozoans. |
1988 |
| details |
Early Pushgillian |
|
Scandinavia |
Grahn,Y. Chitinozoan stratigraphy in the Ashgil and Llandovery. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) |
1988 |
| details |
Early Pushgillian |
|
Libya |
Grahn,Y. Chitinozoan stratigraphy in the Ashgil and Llandovery. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) |
1988 |
| details |
Early Pushgillian |
|
North America |
Grahn,Y. Chitinozoan stratigraphy in the Ashgil and Llandovery. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) |
1988 |
| details |
Early Ashgillian |
|
Sweden |
Grahn,Y. Chitinozoan stratigraphy in the Ashgil and Llandovery. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) |
1988 |
| details |
Early Ashgillian |
|
USSR(Baltic) |
Kaljo,D. et al. East Baltic Region. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) |
1988 |
| details |
Late Ashgillian |
|
Morocco |
Soufiane,A. et al. Chitinozoa assemblages from the Ordovician Tadla Basin, Morocco. |
1993 |
| details |
Early Ashgillian |
|
Baltic |
Nolvak,J. et al. Ordovician chitinozoan zones from Baltoscandia |
1993 |
| details |
Early Ashgillian |
|
Scandinavia |
Nolvak,J. et al. Ordovician chitinozoan zones from Baltoscandia |
1993 |
| details |
Ashgillian |
|
Gondwanaland |
Paris,F. The Ordovician chitinozoan biozones of the northern Gondwana Domain |
1990 |
| details |
Late Caradocian |
|
Europe |
Taugourdeau,P. Techniques of study, morphology and classification of chitinozoans. |
1966 |
| original |
Llandeilian |
|
Baltic |
Eisenack,A. New Mikrofossils of the Baltic Silurian.1. |
1931 |
| details |
Ordovician |
|
Baltic |
Collinson,C. et al. North American Paleozoic Chitinozoa |
1955 |