| details |
Early Cambrian |
|
Scotland |
Downie,C. Lower Cambrian acritarchs from Scotland, Norway, Greenland and Canada. |
1982 |
| details |
Early Cambrian |
|
Canada(Alberta) |
Downie,C. Lower Cambrian acritarchs from Scotland, Norway, Greenland and Canada. |
1982 |
| original |
Late Cambrian |
|
Italy(Sardinia) |
Barca,S. et al. Acritarchs in the "Arenaire di San Vito" of southeast Sardinia. Stratigraphical and geological implications. |
1982 |
| details |
Early Cambrian |
Middle Cambrian |
Canada(Quebec) |
Lavoie,D. et al. Stratigraphic framework for the Cambrian-Ordovician rift and passive margin successions from southern Quebec to western Newfoundland. |
2003 |