| details |
Early Oligocene |
|
Alaska |
Marincovich,L.,Jr. et al. Oligocene age of strata on Unga Island, Shumagin Islands, Southwestern Alaska. (In: Geologic Studies in Alaska by the United States Geological Survey. J.H. and J.P.Galloway, editors) |
1991 |
| details |
Late Maestrichtian |
|
Canada(Alberta) |
Sweet,A.R. Relationships between depositional environments and changes in palynofloras across the K/T Boundary interval. (In: Sedimentation of Organic Particles. A.Traverse, editor) |
1994 |
| details |
Cretaceous |
|
Canada |
Sweet,A.R. Relationships between depositional environments and changes in palynofloras across the K/T Boundary interval. (In: Sedimentation of Organic Particles. A.Traverse, editor) |
1994 |
| details |
Late Maestrichtian |
|
Canada(Arctic) |
Sweet,A.R. Relationships between depositional environments and changes in palynofloras across the K/T Boundary interval. (In: Sedimentation of Organic Particles. A.Traverse, editor) |
1994 |
| details |
Late Maastrichtian |
|
Canada(NWT,Mackenzie) |
Sweet,A.R. et al. Cretaceous - Tertiary palynofloral perturbations and extinctions within the Aquilapollenites Phytogeographic Province. |
2001 |
| details |
Early Eocene |
Middle Eocene |
Alaska(North Slope) |
Frederiksen,N.O. et al. Palynology of Eocene strata in the Sagavanirktok and Canning Formations on the North Slope of Alaska. |
2002 |