| original |
Middle Carboniferous |
|
USSR(Ukrainian SSR) |
Ishchenko,A.M. Atlas of microspores and pollen of the Middle Carboniferous Period in the western part of the Donets Basin. |
1952 |
| details |
Namurian C |
Westphalian C |
USSR(Rostov) |
Egorov,A.I. et al. Spores and pollen of Middle Carboniferous deposits of the Don Basin. |
1971 |
| details |
Early Carboniferous |
Namurian |
USSR(Kazakh SSR) |
Bannikova,I.M. et al. Spore and pollen assemblages of the Lower Carboniferous in the southeast part of Betpak-Dala. |
1976 |
| details |
Middle Carboniferous |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |