| original |
Pridolian |
|
Baltic Sea |
Eisenack,A. More microfossils from the Beyrichia Limestone (Silurian) |
1971 |
| details |
Late Gothlandian |
Early Devonian |
USSR |
Laufeld,S. Chitinozoans. |
1977 |
| details |
Late Gothlandian |
Early Devonian |
Czechoslovakia |
Laufeld,S. Chitinozoans. |
1977 |
| details |
Nd |
|
Nd |
Zaslavskaya,N.M. On the morphology and systematics of chitinozoa. (In: Problematic Fossils of the USSR. B.S.Sokolov, editors) |
1990 |
| details |
Nd |
|
Nd |
Miller,M.A. Chitinozoa. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Pridolian |
|
Baltic Sea |
Paris,F. et al. A revised chitinozoan classification |
1999 |