| details |
Early Oligocene |
|
Canada(British Columbia) |
Piel,K.M. Palynology of Oligocene sediments from Central British Columbia |
1971 |
| details |
Early Oligocene |
Miocene |
Canada(British Columbia) |
Piel,K.M. Miocene palynological assemblages from Central British Columbia. |
1977 |
| details |
Early Cretaceous |
Tertiary |
Canada(Ontario) |
Rouse,G.E. The Disclosure and paleobotanical evaluation of plant microfossils from selected Cretaceous Coal-bearing strata of Canada |
1956 |
| details |
Cretaceous |
Recent |
Texas |
Leffingwell,H.A. A study of the variation of the microfossil assemblages within the Vicksburg Formation, Texas. |
1958 |
| details |
Cretaceous |
Middle Eocene |
Wyoming |
Guennel,G.K. et al. Palynology of the Hoback Basin |
1973 |
| details |
Albian |
|
Canada(Arctic) |
Hopkins,W.S. Some spores and pollen from the Christopher Formation, (Albian), of Ellef and Amund Ringnes Island, and Northwestern Meville Island, Canadian Arctic Archipelago. |
1974 |