| details |
Late Miocene |
Late Neogene |
Canada(NWT,Mackenzie) |
Dixon,J. et al. In geology and biostratigraphy of the Dome Gulf et al Hunt Kopanoar M-13 Well, Beaufort Sea. |
1984 |
| details |
Late Neogene |
Pleistocene |
USSR(European) |
Chigurayeva,A.A. et al. Peridineae Pediastrum and Gomphosphaeria in Pliocene and Pleistocene deposits of the Caspian Region |
1965 |
| details |
Maastrichtian |
|
USSR(Taymyr Nat.Okrug) |
Bondarenko,N.M. Palynological characteristic of the Albian and Upper Cretaceous deposits of the Khatanga Depression. |
1958 |