| original |
Hauterivian |
Barremian |
USSR(WSL) |
Filippova,E.A. Hauterivian - Barremian. (In: Stratigraphy of Mesozoic and Cenozoic Periods of Western Siberian Lowland. E.A.Filippova, editor) |
1957 |
| details |
Early Kazanian |
|
USSR(European) |
Zoricheva,A.I. et al. Spore-pollen complexes of Upper Permian deposits of various Regions of the North of the European part of the USSR. |
1954 |
| details |
Early Kazanian |
|
USSR(European) |
Zoricheva,A.I. et al. Spore-pollen complexes of Upper Permian deposits of various Regions of the North of the European part of the USSR. |
1954 |
| details |
Early Kazanian |
|
USSR(European) |
Zoricheva,A.I. et al. Spore-pollen complexes of Upper Permian deposits of various Regions of the North of the European part of the USSR. |
1954 |
| details |
Early Kazanian |
|
USSR(European) |
Zoricheva,A.I. et al. Spore-pollen complexes of Upper Permian deposits of various Regions of the North of the European part of the USSR. |
1954 |
| details |
Early Kazanian |
|
USSR(European) |
Zoricheva,A.I. et al. Spore-pollen complexes of Upper Permian deposits of various Regions of the North of the European part of the USSR. |
1954 |
| details |
Early Kazanian |
|
USSR(European) |
Zoricheva,A.I. et al. Spore-pollen complexes of Upper Permian deposits of various Regions of the North of the European part of the USSR. |
1954 |