Skeleton section Loc. 81 bluff tops in zone fossils of T.L. found small to med. scpt conchs mostly between light grey weath. ls. < oyster clusters (small sp.) big brn. weath conchs, yellow calcite, jackets mm mm 0.7 bentonite light grey weath. conchs -- big sphenos about here in 81 Disco frogs in small conc. OOO OB conchs, brittle, Mn stain, yellow calcite big sphenos in this position at loc. 80 1.0+ bentonite jarosite bands base exposure