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Size comparison. Sachicasaurus was a large pliosaur, with the type specimen measuring approximately 10 metres (33 ft) long and weighing 17 metric tons (19 short tons). [1] [2] The holotype specimen, MP111209-1, was found in 2013 and is known from a near complete skull, and postcranial elements including a complete hindlimb and various vertebrae.
Size range of Mosasaurus compared with a human. The type species, M. hoffmannii, is one of the largest marine reptiles known, [25] [57] though knowledge of its skeleton remains incomplete as it is mainly known from skulls. [33]: 100 Russell (1967) wrote that the length of the jaw equalled one tenth of the body length in the species.
Size is an important aspect of dinosaur paleontology, of interest to both the general public and professional scientists. Dinosaurs show some of the most extreme variations in size of any land animal group, ranging from tiny hummingbirds , which can weigh as little as two grams, to the extinct titanosaurs , such as Argentinosaurus and ...
English: Size comparison of the giant Colombian pliosaurid Sachicasaurus vitae. Sachicasaurus is known from a nearly complete, articulated skeleton, and has been estimated to be around 10 metres (33 ft) in length. The silhouette was scaled based on skull measurements in Páramo-Fonseca et. al. (2018).
Size comparison between a human and two species of Basilosaurus, B. cetiodes (dark blue) and B. isis The heaviest archeocete , and possibly the heaviest known mammal was Perucetus , with weight estimated at 85–340 t (84–335 long tons; 94–375 short tons), while length is estimated at 17.0–20.1 meters (55.8–65.9 ft), [ 108 ] possibly ...
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.
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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.