Many different facies types. Primary framework corals and calcisponges. Encrusted by forams, bryozoans and algae. 'Hydrozoans' and Solenporaceans of minor importance. Organic framework to debris = 1:9 Most debris from cemented reef framework. Within reef 48 % organic origin. Carbonate cement 52 % Total: 62 % organic production. 20 genera (30 species) of sphinctozoans 10 genera (20 species) of inozoans 8 chaetetid sponge taxa 3 disjectoporids Gastrochaenid and lithophagid macroborings