Calizas de briozoos del Oligoceno superior-Mioceno inferior: Implicaciones paleoambientales (Subbético Externo, Sierra de Cabra, provincia de Córdoba) Byozoan limestones in the upper Oligocene-lower Miocene: Paleoenvironmental implications (External Subbetic, Sierra de Cabra, Córdoba province)

Bryozoans are excellent paleoenvironmental and paleoclimatic indicators, particularly for temperate and cold-water carbonates. Bryozoan diversity, abundance, zooid morphology and colony growth forms, as well as their structures provide information on the physical controls on their habitat. Palaeoenvironmental parameters such as temperature, salinity, water energy, substrate characteristics, and sedimentation rate are inferred from the bryozoans assemblages. The bryozoarians are described and analysed for the firt time in the Oligocene-Miocene rocks of the External Subbetic (Betic Cordillera). The calcirudites and calcarenites with bryozoa were deposited at depths between 15 and 60 m, in competition with and laterally related to deeper benthic foraminifer and rhodolith facies.