| original |
Early Cretaceous |
|
Canada(W.Canada) |
Pocock,S.A.J. Microfloral analysis and age determination of strata at the Jurassic-Cretaceous boundary in the Western Canada Plains |
1962 |
| details |
Early Cretaceous |
|
Canada(Alberta) |
Singh,C. Microflora of the Lower Cretaceous Mannville Group, east-central Alberta. |
1964 |
| details |
Valanginian |
|
Canada(NWT) |
Pocock,S.A.J. The Jurassic-Cretaceous boundary in northern Canada. |
1967 |
| details |
Early Cretaceous |
|
Canada(Saskatchewan) |
Lentin,J.K. Depositional environments of the Mannville Group-New light on an old problem |
1982 |
| details |
Neocomian |
Aptian |
Canada(Alberta) |
Putnam,P.E. Aspects of the petroleum geology of the Lloydminster Heavy Oil Fields, Alberta and Saskatchewan. |
1982 |
| details |
Neocomian |
Aptian |
Canada(Saskatchewan) |
Putnam,P.E. Aspects of the petroleum geology of the Lloydminster Heavy Oil Fields, Alberta and Saskatchewan. |
1982 |
| details |
Early Cretaceous |
|
Argentina(Tierra) |
Zamaloa,M.C. et al. Some spores and pollen from the Cullen Formation (Upper Eocene to Middle Oligocene) Tierra del Fuego, Argentina. |
1990 |