Pliosaurus ("more lizard") is a genus of pliosaur from the Late Jurassic of Europe and South America. Its name comes from the belief that it was closer related to lizards and crocodiles than plesiosaurs were. It is known from several species, with one, P. funkei, being one of the largest pliosaurs known.

In The Land Before Time

A Pliosaurus briefly appears in the opening narration of The Land Before Time IV: Journey through the Mists, where it is seen chasing a school of Macropoma.

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