Claim: The Ichthyosaur has been found in many geological formations like the late Tithonian era Agardhfjellet Formation and the early Bajocian Los Molles Formation.
Evidence: Agardhfjellet Formation late Tithonian Los Molles Formation early Bajocian Antimonio Formation Besano Formation Blue Lias Clearwater Formation Favret Formation (Fossil Hill Member) Franciscan Formation