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Junior synonym of Mosasaurus. Lestosaurus. Marsh. 1872. Jr. synonym. Junior synonym of Platecarpus. Liodon. Agassiz. 1846. Nomen dubium USA Germany New Zealand Angola. Dubious genus due to the fragmentary nature of the type specimen and the type species L. anceps. All species referred to it likely do not belong to the same genus. Macrosaurus ...
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.
Skeleton of Clidastes liodontus mounted as if pursuing a fossil sea turtle. Russell (1967, pp. 123–124) [6] defined the Mosasaurinae as differing from all other mosasaurs as follows: "Small rostrum present or absent anterior to premaxillary teeth.
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]
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MNHN 9587 was originally assessed as 'Ichtyosaurus missouriensis', [7] while RFWUIP 1327 was described as 'Mosasaurus maximiliani'. [8] Later both specimens were confirmed to belong to the same individual and the species name was established. Skull of Mosasaurus missouriensis holotype RFWUIP 1327 with a cast of MNHN 9587. Sarabosaurus dahli ...
Instead, they primarily relied on stratigraphic associations and Cuvier's 1808 research on the holotype skull. Thus, in-depth research on the placement of Mosasaurus was not undertaken until the discovery of more complete mosasaur fossils during the late 19th century, which reignited research on the placement of mosasaurs among squamates. [8]
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 ...