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The largest species, M. hoffmannii, is estimated to measure up to 12 meters (39 ft) in maximum length, making it one of the largest mosasaurs. The skull of Mosasaurus had robust jaws and strong muscles capable of powerful bites using dozens of large teeth adapted for cutting prey. Its four limbs were shaped into paddles to steer the animal ...
The Mosasaurus hoffmannii skull found in Maastricht between 1770 and 1774. The first publicized discovery of a partial fossil mosasaur skull in 1764 by quarry workers in a subterranean gallery of a limestone quarry in Mount Saint Peter, near the Dutch city of Maastricht, preceded any major dinosaur fossil discoveries, but remained little known.
The depiction of Mosasaurus with a boxy head, side-positioned nose, and flippers contradicted the studies of Goldfuss (1845), whose examinations of the vertebrae and skull of M. missouriensis instead called for a narrower skull, nostrils at the top of the skull, and amphibious terrestrial limbs (the latter of which is incorrect in modern ...
A mix of features in the bones of its skull made it unexpectedly challenging for the scientists to classify the newcomer and hinted that the mosasaur group includes more diverse forms than ...
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
The first skull, found in 1764, purchased in 1784 by Camper's pupil Martin van Marum for the Teylers Museum, where it remains today. The second skull, M. hoffmannii holotype jaw fragments, known as the "great animal", it was taken as war booty to Paris, where it remains today in the Muséum national d'histoire naturelle The first skull, engraving from the 1799 book by Barthélemy Faujas de ...
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]