| original |
Maastrichtian |
Danian |
USSR(WSL) |
Chlonova,A.F. Spores and pollen of the upper half of the Upper Cretaceous of the eastern part of the Western Siberian Lowland. |
1961 |
| details |
Campanian |
Danian |
USSR(Siberia) |
Samoilovich,S.R. Tentative botanic-Geographical subdivision of North Asia in the Late Cretaceous time. (In: On the Methods in Paleopalynological Studies.) |
1966 |
| details |
Campanian |
Danian |
USSR(Siberia) |
Chlonova,A.F. Palynological investigations of Upper Cretaceous deposits of Bolshaja Laida River (Ust-Yenisei District). (In: Contributions to Paleophytology of Siberia. A.F.Khlonova, editor) |
1976 |
| details |
Late Maastrichtian |
Early Paleocene |
Canada(Alberta) |
Sweet,A.R. The Cretaceous-Tertiary boundary in the Central Alberta Foothills. II. Miospore and pollen taxonomy. |
1986 |
| details |
Late Maastrichtian |
Early Paleocene |
Canada(Saskatchewan) |
Sweet,A.R. The Cretaceous-Tertiary boundary in the Central Alberta Foothills. II. Miospore and pollen taxonomy. |
1986 |
| details |
Maastrichtian |
Danian |
USSR(WSL) |
Sweet,A.R. The Cretaceous-Tertiary boundary in the Central Alberta Foothills. II. Miospore and pollen taxonomy. |
1986 |