original |
Santonian |
Maastrichtian |
Canada(NWT,Mackenzie) |
McIntyre,D.J. Palynology of an Upper Cretaceous section, Horton River, District of MacKenzie, N. W. T. |
1974 |
original |
Campanian |
|
Canada(NWT,Mackenzie) |
Ioannides,N.S. et al. A preliminary palynological study of the Caribou Hills outcrop section along the MacKenzie River, District of MacKenzie. |
1980 |
original |
Middle Eocene |
Late Eocene |
Atlantic(Greenland Sea) |
Firth,J.V. Upper Middle Eocene to Oligocene dinoflagellate biostratigraphy and assemblage variations in Hole 913B, Greenland Sea |
1996 |