| details |
Gamachian |
Early Rhuddanian |
Libya |
Soufiane,A. et al. Chitinozoan zonation of the Late Ordovician and the Early Silurian of the island of Anticosti, Quebec, Canada. |
2000 |
| original |
Hirnantian |
|
Canada(Anticosti Island) |
Soufiane,A. et al. Chitinozoan zonation of the Late Ordovician and the Early Silurian of the island of Anticosti, Quebec, Canada. |
2000 |
| details |
Late Ordovician |
|
Canada(Arctic) |
Achab,A. et al. The Laurentian Ordovician chitinozoan zonation: some modifications and some remaining problems. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Late Ordovician |
|
Canada(Newfoundland) |
Achab,A. et al. The Laurentian Ordovician chitinozoan zonation: some modifications and some remaining problems. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Late Ordovician |
|
Canada(Quebec) |
Achab,A. et al. The Laurentian Ordovician chitinozoan zonation: some modifications and some remaining problems. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Late Hirnantian |
|
Canada(Anticosti Island) |
Melchin,M.J et al. Correlation of graptolite biozones, chitinozoan biozones, and carbon isotope curves through the Hirnantian. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |