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Champsosaurus
''Champsosaurus'' is an extinct genus of diapsid reptile belonging to the order Choristodera.
==Description==
It grew to about 1.50 m (5 ft) long,〔D.Lambert, D.Naish and E.Wyse 2001, "Encyclopedia of Dinosaurs and prehistoric life", p. 77, Dorling Kindersley Limited, London. ISBN 0-7513-0955-9〕 though ''C. gigas'', the largest species, reached 3-3.5 m (10–12 ft) in length.〔https://www.dmr.nd.gov/ndfossil/poster/PDF/Champosaurus%20gigas.pdf〕
''Champsosaurus'' vaguely resembled a gharial and, like gharials, it was primarily aquatic, catching fish with its long, tooth-lined jaws. It probably swam with lateral body movements, pinning its limbs against its body to increase its streamline, just like crocodiles and the Marine Iguana. Behind the eyes, ''Champsosauruss skull was very wide, where powerful jaw muscles were attached.〔 It was so specialised to life in the water that only females could come ashore to lay eggs, while males could not move on land.〔Yoshihiro Katsura, Fusion of sacrals and anatomy in Champsosaurus (Diapsida, Choristodera), doi:10.1080/08912960701374659〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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