The Hradec Formation belongs to the paleontologically hitherto little proved series
of the Moravo-Silesian Culm.  According to the new collections, the formation is of
Go beta spi and Go gamma l age. The fauna of the Hradec Formation represents a transition be-
tween  the Moraviee Group and the Kyjovice Formation. By its speeifie contents, it
shows  a close relationship to the fauna of the German and English Upper Viséan.
From the ecological point of, view, the fauna is relatively constant and links up with
the fauna of the Moravice Group.