Type Region
Layer 121 feet below base of Sporadoceras beds
Layer 14 feet below base of Sporadoceras beds
Layer 19 feet below base of Sporadoceras beds
Layer 23 feet below base of Sporadoceras beds
Layer 32 feet below base of Sporadoceras beds
Layer 40 feet above base of Sporadoceras beds
Layer 40 feet below base of Sporadoceras beds
Layer 45 feet below base of Sporadoceras beds
Layer 53 feet below base of Sporadoceras beds
Layer 63 feet below base of Sporadoceras beds
Layer 69 feet below base of Sporadoceras beds
Layer 70 feet below base of Sporadoceras beds
Layer 80 feet above base of Sporadoceras beds
Layer base of Sporadoceras beds
Layer Bed K, "Syncline Gully