| 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 |
|
Poland |
Jachowicz,A. New data concerning the occurence of microspores and pollen grains in the Namurian deposits of the north-eastern part of the Upper Silesian Coal Basin. |
1964 |
| details |
Nd |
|
Nd |
Turnau,E. On some Carboniferous microspore species of the genus Brachytrilistrium Naumova 1937. |
1967 |
| details |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |