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One notable giant is Soroposeidon, identified through enormous fossils excavated from Oklahoma in 1994. Its vertebrae were so substantial that they misled researchers into believing they were petrified tree trunks. Adult Soroposeidons potentially reached lengths of 27 to 34 meters, weighing between 40 to 60 metric tons. Despite its towering neck and head, there is uncertainty about whether the neck was primarily held vertically or horizontally, impacting its feeding behavior and potential adaptations.