| original |
Albian |
|
Canada(Alberta) |
Brideaux,W.W. Palynology of the Lower Colorado Group (Late Lower Cretaceous) and its lithological equivalents in central and west-central Alberta, Canada. |
1968 |
| original |
Late Albian |
|
Canada(Alberta) |
Brideaux,W.W. Palynology of the Lower Colorado Group, central Alberta, Canada. I. Introductory remarks. Geology and microplankton studies. |
1971 |
| details |
Albian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |