Reef built by platy corals. The coral units are underlain by bioclastic limestones interlayered with thin rudist-chaetetid biostromes, separated by a 15–30 m thick interval of bioclastic limestones and overlain by upper Aptian conglomerates. Mostly dense, rarely sparse, platestones are composed of a low diversity coral assemblage mainly represented by the suborder Microsolenina. Small, branching corals are very rare. The matrix mainly consists of fine bioclastic-peloidal packstones and wackestones. Dominance of microsolenine corals, their flattened morphology, the presence of epibionts on coral undersurfaces and occurrence of red algae Sporolithon rude and Polyastra alba.