| details |
Llanvirnian |
|
USA(Appalachian Bn.) |
Grahn,Y. et al. Lower Middle Ordovician chitinozoa from the Southern Appalachians, United States |
1984 |
| details |
Early Ashgillian |
|
Canada(Quebec) |
Achab,A. Late Caradocian - Early Ashgillian chitinozoans of Quebec, Canada. |
1987 |
| details |
Ashgillian |
|
Canada(Quebec) |
Achab,A. Ordovician chitinozoan zonation of Quebec and Western Newfoundland. |
1989 |
| details |
Ashgillian |
|
Canada(Newfoundland) |
Achab,A. Ordovician chitinozoan zonation of Quebec and Western Newfoundland. |
1989 |
| details |
Rawtheyan |
|
Brazil(Amazonas) |
Grahn,Y. Ordovician chitinozoa and biostratigraphy of Brazil |
1992 |
| details |
Pushgillian |
|
England |
Paris,F. Application of chitinozoans in long-distance Ordovician correlations. (In: Global Perspectives on Ordovician Geology. B.D. Webby and J.R. Laurie, editors) |
1992 |
| details |
Late Caradocian |
Ashgillian |
Brazil(Amazonas) |
Grahn,Y. et al. Age and correlation of the Trombetas Group, Amazonas Basin, Brazil. |
1992 |
| details |
Late Ordovician |
|
Ohio |
Grahn,Y. et al. Age and correlation of the Trombetas Group, Amazonas Basin, Brazil. |
1992 |
| details |
Late Pushgillian |
Early Cautleyan |
Saudi Arabia |
Al-Hajri,S. Biostratigraphy of the Ordovician chitinozoa of Northwestern Saudi Arabia. (In: Palaeozoic Palynostratigraphy of the Kingdom of Saudi Arabia. B.Owens et al, editors) |
1995 |
| details |
Pushgillian |
|
Worldwide |
Paris,F. Chitinozoan biostratigraphy and palaeoecology. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Ordovician |
|
Nd |
Miller,M.A. Chitinozoa. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Late Maysvillian |
Early Richmondian |
Ohio |
Paris,F. et al. A revised chitinozoan classification |
1999 |