Age from middle Lochkovian to lower Pragian. delta Zone at base, probably up to sulcatus zone.

Rudstones and boundstones in type section of Tor limestone. 
Basal rudstone with Stromatopora, Labechia(?) and Renalcis. 
Then bafflestone of bryozoans.
Rugose corals encrusted by Renalcis
Mudstones with abundant calicmicrobes: Renalcis, Girvanella, Sphaerocodium associated with some heliolitid corals.
Some crinoids as bafflers