| original |
Volgian |
|
USSR(Irkutskaya Oblast) |
Fedorova,V.A. et al. Palynostratigraphy of the boundary deposits of the Jurassic and Cretaceous at Oka River. (In: Pogranichnye Varusy Yurskoi i Melovoi Sistem) |
1984 |
| original |
Aptian |
|
USSR(Primorsk Kray) |
Bityutskaya,P.I. et al. The significance of the palynological method for the subdivision of the Cretaceous deposits of the North-Western part of the Pacific biogeographic area. (In: Palynology, Method and Stratigraphy) |
1973 |
| original |
Cuisian |
|
England(Dorset) |
Chandler,M.E.J. The Schizaeaceae of the South of England in Early Tertiary times. |
1955 |