| details |
Early Llanvirnian |
|
Wales(Anglesey) |
Fenton,J.P.G. Palynological evidence for the age of the Dulas Formation (Ordovician) in Anglesey (North Wales). |
1976 |
| details |
Ordovician |
|
Wales |
Rhodes,F.H.T. Chitinozoa from the Ordovician Nod Glas Formation of Merioneth |
1961 |
| original |
Siegenian |
Emsian |
W.Germany(N.Rhine) |
Eschghi,I. et al. Stratigraphy and Palaogeography of the Siegenian and Emsian of the Aachen-Ahrtal Region |
1984 |
| original |
Siegenian |
Emsian |
W.Germany(N.Rhine) |
Eschghi,I. et al. Stratigraphy and Palaogeography of the Siegenian and Emsian of the Aachen-Ahrtal Region |
1984 |
| original |
Siegenian |
Emsian |
W.Germany(N.Rhine) |
Eschghi,I. et al. Stratigraphy and Palaogeography of the Siegenian and Emsian of the Aachen-Ahrtal Region |
1984 |
| original |
Siegenian |
Emsian |
W.Germany(N.Rhine) |
Eschghi,I. et al. Stratigraphy and Palaogeography of the Siegenian and Emsian of the Aachen-Ahrtal Region |
1984 |
| original |
Siegenian |
Emsian |
W.Germany(N.Rhine) |
Eschghi,I. et al. Stratigraphy and Palaogeography of the Siegenian and Emsian of the Aachen-Ahrtal Region |
1984 |
| original |
Siegenian |
Emsian |
W.Germany(N.Rhine) |
Eschghi,I. et al. Stratigraphy and Palaogeography of the Siegenian and Emsian of the Aachen-Ahrtal Region |
1984 |
| original |
Siegenian |
Emsian |
W.Germany(N.Rhine) |
Eschghi,I. et al. Stratigraphy and Palaogeography of the Siegenian and Emsian of the Aachen-Ahrtal Region |
1984 |
| original |
Siegenian |
Emsian |
W.Germany(N.Rhine) |
Eschghi,I. et al. Stratigraphy and Palaogeography of the Siegenian and Emsian of the Aachen-Ahrtal Region |
1984 |
| original |
Siegenian |
Emsian |
W.Germany(N.Rhine) |
Eschghi,I. et al. Stratigraphy and Palaogeography of the Siegenian and Emsian of the Aachen-Ahrtal Region |
1984 |
| details |
Arenigian |
Llandoverian |
W.Germany(Bavaria) |
Sawatzki,G. et al. Lower Paleozoic chitinozoans and acritarchs from gneisses of the Southern Black Forest, southwest Germany. |
1997 |
| details |
Middle Ordovician |
|
USSR(Vologda) |
Timofeev,B.V. et al. Microfossils of the Precambrian, Cambrian and Ordovician. |
1976 |
| details |
Caradocian |
|
USSR(Ukrainian SSR) |
Zaslavskaya,N.M. et al. Chitinozoans in Ordovician and Silurian deposits of the Altai Mountains. (In: The Fauna and Biostratigraphy of Upper Ordovician and Silurian of the Altai-Sajan Region) |
1978 |
| details |
Frasnian |
|
USSR(Siberia) |
Dubatolov,V.N. et al. Biostratigraphy-Paleozoic of the southeast region of the West Siberian Platform. |
1984 |
| details |
Llandoverian |
|
USSR(Siberia) |
Zaslavskaya,N.M. Silurian of Siberian Platform chitinozoa |
1983 |
| details |
Early Devonian |
Frasnian |
USSR(Siberia) |
Dubatolov,V.N. et al. Paleozoic stratigraphy of the southeastern part of the West Siberian Plate. (In: Paleozoic biostratigraphy of Western Siberia. V.N.Dubatolov and A.V.Kanygni, editors) |
1985 |