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Marine reptiles

Xiphactinus ( from Latin and Greek for "sword ray" ) is an extinct genus of large marine predary fish that existed in the late Cretaceous Period, between 99 and 65 million years ago.


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Helicoprion is a genus of shark-like, spiral-toothed prehistoric fish that arose in the early Permian, about 290 million years ago, survived the Permian-Triassic extinction event, and eventually became extinct during the early Triassic, some 250 million years ago.


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Ichthyosaurus (derived from Greek "ichtyos" meaning lizard and "saurus" meaning lizard) is a genus of marine reptiles that appeared during the Triassic, reached their peak during the Jurassic, and disappeared during the Cretaceous Period, about 95 million years ago.


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Ichthyosaurus (derived from Greek "ichtyos" meaning lizard and "saurus" meaning lizard) is a genus of marine reptiles that appeared during the Triassic, reached their peak during the Jurassic, and disappeared during the Cretaceous Period, about 95 million years ago.


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Mosasaurus is a genus of extinct aquatic reptiles that existed in the late Cretaceous Period, between 70 and 66 million years ago. The name means 'Meuse lizard', as the first specimen of this prehistoric animal was found near the Meuse River in the Netherlands.


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Globidens ("globe teeth') is an extinct genus of large marine reptiles that lived during the Late Cretaceous Period, between 75 and 67 million years ago.


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Platecarpus was aquatic reptile named after the ancient Greek word combination that can be translated as "lizard of flat wrist".


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Pliosaurus means "more lizard" - its name is derived from Ancient Greek words "pleion" meaning "more" and "sauros" meaning "lizard" in reference to its shape which appears to be closer to lizards than to other dinosaurs.

Pliosaurus was a genus of large carnivorous marine reptiles that lived in the Late Jurassic Period, about 145 million years ago.


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Tylosaurus was not a dinosaur! Tylosaurus is a huge marine reptile, 15 meters long.

Tylosaurus may have ruled the Late Cretaceous seas also because in its day all the other would-be competitors, such as ichtyosaurus, were already extinct.


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Sarcosuchus is one of the largest crocodile-like reptiles ever. It grew up to 12 m in length - twice as long as the modern saltwater crocodile - and weighed up to 8 tons. Its entire body was covered with armored plates. The prehistoric 'super-croc' had a 1.8 m long head, with huge conical teeth that could easily crush bone with a little help of its fearsome jaws. It also had four short legs and a long, powerful tail, perfectly designed to swim through water at fast speeds.


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