| original |
Senonian |
Danian |
USSR(Tomskaya Oblast) |
Kondinskaya,L.I. Fossil spores of Water ferns in Upper Cretaceous and Paleogene Deposts of West Siberian Lowland |
1966 |
| details |
Maastrichtian |
|
Canada(Alberta) |
Snead,R.G. Microfloral diagnosis of the Cretaceous-Tertiary boundary, Central Alberta. |
1969 |
| details |
Campanian |
Maastrichtian |
Canada(Alberta) |
Gunther,P.R. et al. Megaspore palynology of the Brazeau Formation (Upper Cretaceous), Nordegg area, Alberta. |
1970 |
| 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 |
Senonian |
Danian |
USSR(Tomskaya Oblast) |
Srivastava,S.K. The Cretaceous megaspore genus Ghoshispora. |
1978 |
| details |
Nd |
|
Nd |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Santonian |
|
Russia(Urals) |
Amon,E.O. et al. An essay on regional geology and stratigraphy of the Upper Cretaceous deposits of southern Urals Territories. |
1997 |