Calcareous breccias from Antolin (Guadiato Área, Córdoba Province) have been analysed. Paleontological and sedimentological studies of those breccias, allowed a reconstruction of a not-preserved calcareous platform or ramp. Breccias from Antolin show six types of clasts and blocks: oolithic grainstones originated in calcareous shoals, coral-algal boundstones originated in patch-reefs, packstones that are mainly composed of solitary corals and brachiopods produced in shallow quiet waters, crinoidal packstones originated in crinoida! prairies, mudstones-wackestones with micropeloidal and cryptalgal textures that were originated in mud mounds and calcareous sandstones originated in a mixed ramp.
The debris flow was located in the photic zone of a middle, mixed ramp, because clasts show algal and bryozoan crusts; moreover, clasts and blocks show signs of short transportation