| original |
Ordovician |
Silurian |
Baltic |
Eisenack,A. Chitinozoa of the Baltic Region. |
1968 |
| details |
Middle Wenlockian |
|
USSR(Estonian SSR) |
Nestor,V. Chitinozoan Zonal Assemblages, (Wenlock, Estonia). |
1982 |
| details |
Late Llandoverian |
|
USSR(Estonian SSR) |
Nestor,V. Distribution of chitinozoans in the Late Llandoverian Rumba Formation (Pentamerus Oblongus Beds) of Estonia |
1984 |
| details |
Wenlockian |
|
USSR(Estonian SSR) |
Nestor,V. Zonal distribution of chitinozoans in the Wenlockian Jaani Stage of Estonia and the problem of its upper boundary. (In: Stratigraphy of older Paleozoic deposits of the Baltic Regions. R.M. Miannil and K.A. Mens, editors) |
1984 |