| details |
Maastrichtian |
|
Canada(Saskatchewan) |
Srivastava,S.K. The Cretaceous megaspore genus Ghoshispora. |
1978 |
| details |
Late Cretaceous |
|
Canada(Alberta) |
Speelman,J.D. et al. Megaspore paleoecology |
1980 |
| details |
Coniacian |
Maastrichtian |
Worldwide |
Kovach,W.L. et al. Worldwide stratigraphic occurrences of Mesozoic and Tertiary megaspores. |
1989 |
| details |
Maastrichtian |
|
Canada(Saskatchewan) |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Maastrichtian |
|
Canada(Alberta) |
Nambudiri,E.M.V. et al. Paleobotany, palynology and depositional environmen of the Maestrichtian Whitemud Formation in Alberta and Saskatchewan, Canada. |
1991 |
| details |
Maastrichtian |
|
Canada(Saskatchewan) |
Nambudiri,E.M.V. et al. Paleobotany, palynology and depositional environmen of the Maestrichtian Whitemud Formation in Alberta and Saskatchewan, Canada. |
1991 |