The main reef forming organisms in bioherms  included seven species of Schizoporella
(Schizoporellidae, Cheilostomata) and quite common
cyclostomes Diastopora, Tubulipora, and Pustulipora.
The majority of the bryozoans have membraniporiform colonies. Vinculariform types are also present. These bioherms occurred at the transition from the upper to lower sublittoral zones.