These facies comprise alternating shale and laminated marl (containing radiolarians, fish scales and less ammonites and bivalves), among which are intrespersed intraclastic packstones (containing ammonites, bivalves and remains of bony fish), microbial bindstones having a fine lamination of irregular aspect and regular calcite sheets. | These facies comprise alternating shale and laminated marl (containing radiolarians, fish scales and less ammonites and bivalves), among which are intrespersed intraclastic packstones (containing ammonites, bivalves and remains of bony fish), microbial bindstones having a fine lamination of irregular aspect and regular calcite sheets. |