| details |
Late Wenlockian |
|
USSR(Estonian SSR) |
Nestor,V. Chitinozoan Zonal Assemblages, (Wenlock, Estonia). |
1982 |
| original |
Late Wenlockian |
|
USSR(Estonian SSR) |
Nestor,V. New Wenlockian species of Conochitina from Estonia. |
1982 |
| details |
Wenlockian |
Ludlovian |
USSR(Estonian SSR) |
Nestor,V. et al. Dating of the Wenlock Carbonate sequences in Estonian and stratigraphicheskie Pereryvy |
1990 |
| details |
Early Wenlockian |
Middle Wenlockian |
Wales(Powys) |
Verniers,J. Calibration of Chitinozoa versus graptolite biozonation in the Wenlock of Builth Wells district (Wales, U.K), compared with other areas in Avalonia and Baltica. |
1999 |
| details |
Sheinwoodian |
Homerian |
Belgium |
Verniers,J. et al. The chitinozoan biostratigraphy of the Silurian of the RonquiĐres-Monstreux area (Brabant Massif, Belgium) |
2002 |