| details |
Caradocian |
|
Canada(Quebec) |
Martin,F. Ordovician chitinozoa from Quebec and Ontario, Canada. |
1975 |
| details |
Caradocian |
|
Canada(Ontario) |
Martin,F. Ordovician chitinozoa from Quebec and Ontario, Canada. |
1975 |
| details |
Late Champlainian |
Early Cincinnatian |
Canada(Quebec) |
Martin,F. Ordovician chitinozoa and acritarchs of the Saint-Laurent Platform, (Quebec and Southeast Ontario). |
1983 |
| details |
Early Cincinnatian |
|
Canada(Ontario) |
Martin,F. Ordovician chitinozoa and acritarchs of the Saint-Laurent Platform, (Quebec and Southeast Ontario). |
1983 |