| details |
Gzelian |
Asselian |
USSR(Kemerovskaya) |
Andreeva,E.M. et al. On the age of the Ostrog Suite, Kuznetes Basin. |
1974 |
| details |
Carboniferous |
|
USSR(Kemerovskaya) |
Dryagina,L.L. et al. Spore pollen complexes of the Carboniferous. (In: Biostratigraphy of the Paleozoic of the Sayano-Altai Mining Region.Vol. III. Upper Paleozoic. L.L.Khalfina, editor) |
1962 |
| original |
Serpukhovian |
|
USSR(Siberia) |
Dryagina,L.L. Spores and pollen. (In: Biostratigraphy of the Paleozoic of the Sayano-Altai Mining Region.Vol. III. Upper Paleozoic. L.L.Khalfina, editor) |
1962 |
| original |
Early Carboniferous |
|
USSR(Siberia) |
Kovalenko,L.A. Materials for the investigation of spores and pollen of the Ostroysk Formation of Kuznetsk Basin |
1956 |