Colymbosaurus
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Colymbosaurus is a genus of cryptoclidid plesiosaur from the Middle-Late Jurassic of the UK and Svalbard, Norway. There are two currently recognized species, C. megadeirus and C. svalbardensis.
Colymbosaurus scapula and coracoids that were previously assigned to C. trochantericus
Placochelys BW
Nothosaurus BW
Plesiosaur
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The Plesiosauria or plesiosaurs are an order or clade of extinct Mesozoic marine reptiles, belonging to the Sauropterygia. Plesiosaurs first appeared in the latest Triassic Period, possibly in the Rha
Paleo Hall at HMNS plesiosaur
Peloneustes philarchus Tubingen
First published plesiosaur skeleton, 1719 (specimen NHMUK PV R.1330)
As this illustration shows, Conybeare by 1824 had gained a basically correct understanding of plesiosaur anatomy.