Definition: Cyprinodontini is a group of ancient marine reptiles that lived during the Cretaceous period and were part of the order Dinotherians, along with the Dinosauria. These creatures are characterized by their large size (up to 10 meters), powerful jaws, and the ability to breathe underwater using gills or specialized lungs. The Cyprinodontini evolved from a group known as the Cretaceous Plesiosaurs, which were part of the order Dinother
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