JAYCOX SHALE (Under the Tichnor Limestone at Buffalo Creek)
https://ngmdb.usgs.gov/Geolex/UnitRefs/JaycoxRefs_2227.html
https://ngmdb.usgs.gov/Geolex/Units/Jaycox_2227.html
Features: Tichenor Limestone, Cottage City Coral Bed, Greens Landing Coral Bed,
Hills Gulch Bed, Romulus Beds, Bloome Creek Bed, Blasdell Beds, Miles trip Road Bed, Spring Brook Horizon.