| details |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |
| details |
Namurian B |
Westphalian B |
Poland |
DybovЎ,S. et al. Microspore zones in Upper Silesian productive Carboniferous. |
1957 |
| details |
Rhaetian |
Hettangian |
Poland |
Grabowska,I. et al. Flora from the Lower and Middle Jurassic microflora |
1970 |
| details |
Namurian |
|
Poland |
Butterworth,M.A. The distribution of Densospores. |
1966 |
| details |
Westphalian |
|
Poland |
Butterworth,M.A. The distribution of Densospores. |
1966 |
| details |
Namurian B |
Westphalian A |
Poland |
Alpern,B. et al. Provisional report of CIMP Group No.2 on Densosporites, (Berry), emended |
1962 |