Some plant microfossils of possible terrestrial origin from the Ordovician of Central Bohemia.
Reference:
VavrdovЎ,M. (1984)
Some plant microfossils of possible terrestrial origin from the Ordovician of Central Bohemia. Vestnik Ustredniho љstavu Geologickeho,(Bulletin of the Geological Survey of Prague)
Vol. 59 # 3 P. 165- 170