| original |
Early Gothlandian |
|
USSR(Baltic) |
Eisenack,A. New microfossils of the Baltic Silurian. IV. |
1938 |
| details |
Ordovician |
|
W.Germany(Rhineland) |
Eisenack,A. Chitinozoans and Hystrichospheres in the Ordovician of the Rhine Schiefergebirge. |
1939 |
| details |
Ordovician |
|
Baltic |
Collinson,C. et al. North American Paleozoic Chitinozoa |
1955 |
| details |
Ordovician |
|
W.Germany |
Collinson,C. et al. North American Paleozoic Chitinozoa |
1955 |
| details |
Early Gothlandian |
|
USSR(Baltic) |
Locquin,M.V. Thie Chitinomycetes of chitinozoa Paleozoic fossils |
1976 |
| details |
Llandeilian |
|
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 |