| details |
Caradocian |
|
England(Shropshire) |
Paris,F. The chitinozoans in the Paleozoic of Southwest Europe. |
1981 |
| details |
Late Ashgillian |
|
Morocco |
Elaouad-Debbaj,Z. Ashgillian chitinozoa of the Anti-Atlas, (Morocco). |
1984 |
| details |
Late Caradocian |
Early Ashgillian |
Morocco |
Elaouad-Debbaj,Z. Chitinozoa from the Lower Ktaoua Formation, Upper Ordovician of the Anti-Atlas, (Morocco). |
1986 |
| details |
Early Ordovician |
Middle Ordovician |
USSR(Dzhambulskaya) |
Zhemchuzhnikov,V.G. et al. The position of the Dzhanytas series in the Lesser Karatau section in connection with the discovery of chitinozoans |
1989 |
| details |
Ashgillian |
|
Gondwanaland |
Paris,F. The Ordovician chitinozoan biozones of the northern Gondwana Domain |
1990 |
| details |
Caradocian |
Ashgillian |
Morocco |
Soufiane,A. et al. Chitinozoa assemblages from the Ordovician Tadla Basin, Morocco. |
1993 |