| original |
Givetian |
|
Algeria |
Boumendjel,K. New species of Devonian and Silurian chitinozoans of the Illizi Basin, (southeast of the Algerian Sahara). |
1985 |
| details |
Early Givetian |
|
Algeria |
Boumendjel,K. et al. Biostratigraphy of the miospores and chitinozoas of the Late Silurian and Devonian of the Illizi Basin, (southeast Algerian Sahara). |
1988 |
| details |
Early Givetian |
|
Gondwanaland |
Paris,F. Chitinozoan biostratigraphy and palaeoecology. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Early Givetian |
|
Algeria |
Paris,F. Chitinozoan biostratigraphy and palaeoecology. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Early Givetian |
|
|
Grahn,Y. Devonian chitinozoan biozones of Western Gondwana. |
2005 |