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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]
Mosasaurus fossils have been found in North and South America, Europe, Africa, Western Asia, and Antarctica. This distribution encompassed a wide range of oceanic climates including tropical, subtropical, temperate, and subpolar. Mosasaurus was a common large predator in these oceans and was positioned at the top of the food chain.
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
Like all mosasaurs, Thalassotitan had four types of teeth, corresponding to the jaw bones they are located on. On the upper jaw were the premaxillary teeth, maxillary teeth, and pterygoid teeth (located separate from the main jawline near the rear of the skull); while on the lower jaw only the dentary teeth were present.
An 1854 depiction of Mosasaurus in Crystal Palace Park. One of the earliest paleoart depictions of Mosasaurus is a life-size concrete sculpture constructed by natural history sculptor Benjamin Waterhouse Hawkins between 1852 and 1854 as part of the collection of sculptures of prehistoric animals on display at the Crystal Palace Park in London.
Moroccan mosasaur fossil erroneously [2] assigned to Liodon anceps. Liodon anceps was first described as "Leiodon anceps" by Richard Owen in 1841, based only on two tooth fragments and a minor portion of the corresponding jaw bone [1] discovered in Essex, England. [3]
Both the genera Globidens and Prognathodon (sometimes classified as a globidensin, though most often not) have adaptations to a powerful jaw musculature. The ratio between the length of the supratemporal fenestra and the total length of the skull has previously been used as an improvised measurement for mosasaur bite force, and is quite high in these genera (0.27 in Globidens dakotensis and 0. ...
Previously referred to Mosasaurus and Hainosaurus. The largest mosasaur in the basin and "undoubtedly" its top predator, the lower jaw of Tylosaurus ivoensis is estimated to have been over 1.5 meters in length. [50] [10] [44] [51] [11]