| details |
Jurassic |
|
USSR(Yakut ASSR) |
Vasilevskaya,N.D. Ferns from coalbearing deposits in Sangar Region, (Lena Coalbearing Basin). |
1959 |
| details |
Late Liassic |
|
USSR(Siberia) |
Ilyina,V.I. Comparative analysis of spore and pollen complexes in Jurassic deposits of the southern part of Western Siberia. (In: Palynology of Siberia. A.F.Chlonova, editor) |
1966 |
| details |
Middle Jurassic |
|
USSR(Irkutskaya Oblast) |
Gutova,L.N. et al. Vegetation of Early and Middle Jurassic Epochs of the Irkutsk Coal Basin. |
1969 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |