------Dictyonema pragense Prantl, 1951is a post- Lochkovian species from the Devonian of central Bohemia. To the right is the holotype of this form originating from Praha-Zlichov, Svagerka (Daleje Shale, tentaculite Nowakia elegans Zone, Zlichovian).
According to Prantl (1951) and Kraft (1984) this species is very similar to the species Dictyonema leyorense Ruedemann from the Lower Devonian of North America.
