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Champsosaurus laramiensis (3) - tooth

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Description

fossil reptile tooth, mm 5.

Champsosaurus was a kind of extinct aquatic diapsid reptile belonging to the order of Choristodera. About 1.5 meters long lived in Montana during the Late Cretaceous, together with dinosaurs like the T-rex and Triceratops, and survived until the Middle Eocene. Although not related, this reptile was much like a gavial today: slim body, long snout and sharp teeth. With his long jaw easily grab the fish they eat. The name literally means "alligator lizard"; the term "Champs", according to an ancient greek author, comes from the name by which the Egyptians call the Nile crocodiles χαμψαι [champsae].
 Its fossils have been found in North America (Alberta, Saskatchewan, Montana, New Mexico, Texas, and Wyoming) and Europe (Belgium and France).

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