| details |
Early Caradocian |
|
Morocco |
Soufiane,A. et al. Chitinozoa assemblages from the Ordovician Tadla Basin, Morocco. |
1993 |
| original |
Early Caradocian |
|
Morocco |
Achab,A. et al. New morphological characters observed in the order Operculatifera and their implications for the Suprageneric chitinozoan classification |
1993 |
| details |
Nd |
|
Nd |
Miller,M.A. Chitinozoa. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Early Caradocian |
|
Morocco |
Paris,F. et al. A revised chitinozoan classification |
1999 |