| original |
Maastrichtian |
|
Canada(Alberta) |
Srivastava,S.K. Systematic description of some spores from the Edmonton Formation (Maestrichtian), Alberta, Canada. |
1972 |
| details |
Early Cretaceous |
|
Oklahoma |
Wingate,F.H. Palynology of the Denton Shale (Lower Cretaceous), of southeastern Oklahoma. |
1974 |
| details |
Late Albian |
|
Oklahoma |
Wingate,F.H. Plant microfossils from the Denton Shale Member of the Bokchito Formation, (Lower Cretaceous, Albian) in Southern Oklahoma. |
1980 |
| details |
Maestrichtian |
|
Romania |
Itterbeeck,J. Van et al. Palynostratigraphy of the Maastrichtian dinosaur- andmammal sites of the Rўul Mare and Barbat Valleys(Haоeg Basin, Romania). |
2005 |