Special type of Messinian build-up. 5 m wide at base.
Mud-supported mound of stacking coalescent botryoidal aggregates in lowest zone.
Above zone with microbialites and encrusting bryozoans (Celleporaria) melobesiid algae (Lithoporella) and some nubeculariids and serpulids. 
Coral-microbial build-up surroundig the mound.