160 Million Years Ago Plesiosaur Diet Found
The study reveals that small clumps of food remains found in Jurassic-era geological formations in the North Sea likely represent fossilized vomit from long-necked plesiosaurs, which fed on crustaceans, worms, and other marine invertebrates. These fossils offer a unique glimpse into their feeding habits, suggesting that these reptiles hunted in open marine areas and then approached the coast after feeding, leading to the deposition and preservation of their remains in sediments. The research confirms that some of the contents within these clumps were not feces but fossilized vomit, based on their unusual composition and shape. Plesiosaurs are considered one of the main candidates responsible for leaving these remains, although ancient sharks might also have contributed. Details of the study indicate that restrictions on sampling from oil wells and changes in sedimentation complicate efforts to accurately determine the exact source of these fossils.
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