Trace fossils from the Kosov Formation of the Bohemian Upper Ordovician

A variety of trace fossil assemblages was found in the Kosov Formation (altogether 56 ichnospecies). Their character changes from the Skolithos ichnofacies to the mixed Cruziana and Nereites ichnofacies. Assemblage changes are in agreement with concepts of eustatic changes during the Kosovian. The new ichnogenus Monofungites and several new ichnospecies are described.