| details |
Late Valanginian |
Hauterivian |
USSR(Yakut ASSR) |
Kara-Murza,E.N. Some data on the composition of spore-pollen complexes of the marine Lower Cretaceous of the Nordvik Region. |
1958 |
| details |
Late Valanginian |
Hauterivian |
USSR(Taymyr Nat.Okrug) |
Kara-Murza,E.N. Some data on the composition of spore-pollen complexes of the marine Lower Cretaceous of the Nordvik Region. |
1958 |
| details |
Jurassic |
Valanginian |
USSR(Siberia) |
Kara-Murza,E.N. Palynological complexes of Mesozoic deposits of northern Siberia |
1957 |
| original |
Early Jurassic |
Middle Jurassic |
USSR(Siberia) |
Bolkhovitina,N.A. Atlas of spores and pollen from Jurassic and Lower Cretaceous deposits of the Vilyuysk Basin. |
1956 |