| details |
Late Llandoverian |
Early Wenlockian |
Kentucky |
Wood,G.D. Paleoecologic and biostratigraphic significance of chitinozoans and microplankton from the Lower Silurian Osgood Member of the Salamonite Dolomite, Indiana and Kentucky, USA. |
1988 |
| details |
Early Gothlandian |
|
Kentucky |
Wood,G.D. Acritarchs and chitinozoans from the Plum Creek Shale, Oldham Limestone, and Lulbegrud Shale Members of the Noland Formation (Lower Silurian), Kentucky, USA. |
1986 |
| details |
Early Tremadocian |
|
USSR(Siberia) |
Obut,A.M. et al. Siberian Graptolite and chitinozoa assemblages at the Cambrian-Ordovician boundary |
1984 |
| details |
Siegenian |
Emsian |
W.Germany(Rhineland) |
Eschghi,I. et al. Chitinozoans from the Lower Devonian of the Western Rheinisches Schiefergebirge, (Germany). |
1984 |
| details |
Tremadocian |
Middle Caradocian |
USSR(Estonian SSR) |
Grahn,Y. Ordovician chitinozoa from Tallinn, Northern Estonia. |
1984 |
| details |
Llandoverian |
|
Canada(Quebec) |
Asselin,E. Biostratigraphy of chitinozoans of the Early Silurian of the Bay of Chaleur, Gaspe. |
1985 |
| details |
Wenlockian |
|
France(Herault) |
Rauscher,R. Micropaleontological and stratigraphic research in the Ordovician and Silurian in France. Study of the acritarchs, chitinozoans and spores. |
1973 |
| details |
Ordovician |
|
USSR(Baltic) |
Myannil,R.M. The Zonal distribution of chitinozoans in the Ordovician of the East Baltic area. |
1972 |
| details |
Late Tremadocian |
|
China(Hupei) |
Hou,J.-P. et al. Chitinozoan biostratigraphy in China |
1982 |
| details |
Silurian |
|
Canada(Gaspe Area) |
Achab,A. Palynostratigraphic study of several Layers of Silurian Formations of the Lac Matapedia Cyncline |
1975 |
| details |
Llanvirnian |
Ludlovian |
Italy(Sardinia) |
Del Rio,M. et al. Discovery of chitinozoa from the Laconi Formation |
1978 |
| details |
Ordovician |
|
S.Ireland(Clare) |
Downie,C. et al. Micropalaeontological evidence on the age of the Clara Group, (southeast Ireland). |
1968 |