Middle Pennsylvanian pioneer plant assemblage buried in situ by volcanic ash-fall, central Bohemia, Czech Republic

Comparison of the palynological record from the roof of the Lower Radnice Coal with the taphocoenosis preserved in the “bělka” tuff bed overlying this coal and the allochtonous taphocoenosis of the laminated tuffite above bělka indicates a close co-existence of this low-diversity herbaceous phytocoenosis with the high-diversity lepidodendrid lycopsid dominating assemblage.