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Mosasaurus (/ ˌ m oʊ z ə ˈ s ɔːr ə s /; "lizard of the Meuse River") is the type genus (defining example) of the mosasaurs, an extinct group of aquatic squamate reptiles. It lived from about 82 to 66 million years ago during the Campanian and Maastrichtian stages of the Late Cretaceous.
A mosasaur with an almost crocodilian-like head and was one of the few kinds to live in freshwater. It lived in rivers and hunted both aquatic and terrestrial animals in the area. †Hainosaurus †Hainosaurus bernardi ; 70.6–66 Ma Sweden A tylosaurine mosasaur that had more vertebrae in the neck and tail than its Tylosaurus cousin. It is one ...
The smaller mosasaurs may have spent some time in fresh water, hunting for food. The largest mosasaur Mosasaurus hoffmannii was the apex predator of the Late Cretaceous oceans, reaching more than 11 metres (36 ft) in length and weighing up to 10 metric tons (11 short tons) in body mass. [14]
Bell proposed that the Mosasaurini should be abandoned and that all members of the tribe should be incorporated into the Plotosaurini. While other scientists agree that a tribe containing Mosasaurus should be monophyletic, they argue that Mosasaurini should be the valid tribe. For example, in a 2012 study, Aaron LeBlanc, Caldwell, and Bardet ...
Tylosaurus proriger mounted skeleton in the Rocky Mountain Dinosaur Resource Center in Woodland Park, Colorado. This list of mosasaurs is a comprehensive listing of all genera that have ever been included in the family Mosasauridae or the parent clade Mosasauroidea, excluding purely vernacular terms.
A Unique Sacroiliac Contact in Mosasaurs (Sauria, Varanoidea, Mosasauridae). Journal of Vertebrate Paleontology, 6, 2, 197–199. Kiernan, C. R. (January 1, 2002). Stratigraphic distribution and habitat segregation of mosasaurs in the Upper Cretaceous of western and central Alabama, with an historical review of Alabama mosasaur discoveries.
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It was an apex predator in its ecosystem and preyed on a large variety of marine animals including mosasaurs, plesiosaurs, sharks and other large fish, pterosaurs, and occasionally dinosaurs. Cretoxyrhina was also among the fastest-swimming sharks, with hydrodynamic calculations suggesting burst speeds of up to 70 km/h.