Plesiosaur

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Plesiosaurs
Temporal range: Late Triassic - Late Cretaceous, 203.6–66.0 Ma
Paleo Hall at HMNS plesiosaur.jpg
Restored skeleton of Plesiosaurus
Scientific classification e
Unrecognized taxon (fix): Plesiosauria
Subgroups

Plesiosaurs (Greek for "neer to lizard" – πλησίος or plesios meanin "neer to" an σαυρος or sauros meanin "lizard") are ordo extinct o Mesozoic marine reptiles.