| details |
Nd |
|
Nd |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Maastrichtian |
|
North Dakota |
Bergad,R.D. Palynology of the Hell Creek Formation (Maastrichtian) in South-Central North Dakota. |
1974 |
| details |
Campanian |
Maastrichtian |
Canada(Alberta) |
Gunther,P.R. et al. Megaspores and other palynomorphs of the Brazeau Formation (Upper Cretaceous) Nordegg area, Alberta, Canada. |
1972 |
| details |
Cretaceous |
|
Nd |
Jain,R.K. Pre-Tertiary records of Salviniaceae. |
1971 |
| details |
Cretaceous |
|
Nd |
Jain,R.K. Pre-Tertiary records of Salviniaceae. |
1971 |
| original |
Maastrichtian |
Paleocene |
Canada(Alberta) |
Snead,R.G. Microfloral diagnosis of the Cretaceous-Tertiary boundary, Central Alberta. |
1969 |