| original |
Early Namurian A |
|
Poland |
Jachowicz,A. Spore associations and stratigraphical position of Coal Seam at Kolzlowa Gora, (Upper Silesian Basin). |
1959 |
| details |
Westphalian C |
|
Poland |
Dembowski,Z. et al. Accumulations of Lower Namurian coal fragments and pebbles in the sandstones of the Laziska Beds of Borehole "Plaza 203", (Upper Silesian Coal Basin). |
1960 |
| details |
Visean |
Namurian |
Poland |
Jachowicz,A. Megaspore studies. (In: The results of Kozlowa Gora borehole. A.Jachowicz et al, editors). |
1968 |
| details |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |