| 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 |
Westphalian D |
|
Germany(Leipzig) |
DybovЎ,S. et al. The age of the Boghead Coal from Zwickau-Lugau based on palynologic analysis. |
1957 |
| details |
Tournaisian |
|
Poland |
Jachowicz,A. Microflora of the Zareby Beds from the Swietokrzyskie Mountains |
1967 |
| details |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |