; Shale ... splittery mudstone, interbedded,Shale,Mudstone, splittery,Shale,Mudstone, splittery,Shale,Mudstone,Shale,Limestone, tough, with Estheria and broken fish scales,Mudstone, splittery,Shale, soft, gray, splittery,Limestone, tough, with Estheria,Shale, splittery, gray calcareous to mudstone,Mudstone, splittery,