| details |
Early Wenlockian |
|
USSR(Estonian SSR) |
Nestor,V. Chitinozoan Zonal Assemblages, (Wenlock, Estonia). |
1982 |
| original |
Early Wenlockian |
|
USSR(Estonian SSR) |
Nestor,V.K. New chitinozoa species of the genera Ancyrochitina, Gotlandochitina and Sphaerochitina from the Estonian Wenlockian. |
1982 |
| details |
Late Telychian |
|
Canada(Quebec) |
Asselin,E. et al. Chitinozoans of the Early Silurian of the Bay of Chaleur, Gaspesie Region of Quebec, Canada. |
1990 |
| details |
Late Llandoverian |
Early Wenlockian |
USSR(Estonian SSR) |
Nestor,V. Chitinozoans at the Llandovery-Wenlock transition in the Jaagarahu core, Estonia. |
1993 |