| details |
Aptian |
|
USSR(Primorsk Kray) |
Verbitskaya,Z.I. Stratigraphical subdivision of Cretaceous sediments of Suchan Coal Basin based on palynology. |
1962 |
| details |
Dogger |
|
USSR(Orenburg) |
Faddeeva,I.Z. Spore-pollen complexes of Lower Mesozoic deposits in the southern part of the Magnitogorsk Syncline. (In: History of Lower Mesozoic Coal Accumulation in Kazakhstan: Part 1.) |
1961 |
| details |
Early Jurassic |
|
USSR(Kazakh SSR) |
Ritenberg,M.I. et al. Lower Mesozoic coal accumulation in the Territory of the Maikiubensk Basin. (In: History of Lower Mesozoic Coal Accumulation in Kazakhstan: Part 1.) |
1961 |
| original |
Early Jurassic |
|
USSR(Yakut ASSR) |
Bolkhovitina,N.A. Spore-pollen complexes from the Mesozoic deposits of the Vilyuy Basin and their importance for stratigraphy. |
1959 |