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This is a list of stratigraphic units from which mosasaur body fossils have been recovered. Units listed are all either formation rank or higher (e.g. group). Units listed are all either formation rank or higher (e.g. group).
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]
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]
tr This is a list of stratigraphic units from which dinosaur body fossils have been recovered. Although Dinosauria is a clade which includes modern birds, this article covers only Mesozoic stratigraphic units. Units listed are all either formation rank or higher (e.g. group).
This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented.. List of stratigraphic units with dinosaur body fossils
Mosasaurini is an extinct tribe of mosasaurine mosasaurs who lived during the Late Cretaceous and whose fossils have been found in North America, South America, Europe, Africa and Oceania, with questionable occurrences in Asia.
Megapterygius is a medium-sized mosasaur with an estimated skull length of 0.8 metres (2.6 ft) and a body length of approximately 6 metres (20 ft). Both the front and hind flippers are longer than the skull.
Jormungandr is a large mosasaur. The holotype skull measures 72 centimeters (28 in) in total length and the lower jaw is 80.8 centimeters (31.8 in) long. [2] Based on these measurements, Zietlow and colleagues estimated a total body length of 5.4–7.3 meters (18–24 ft). [3] [4] Size of Jormungandr compared to a human