Plesiosaurs had smooth skin to reduce drag in the water. 44996kg 992lbs top speed. That means they were twice as long as a modern horse and weighed twice as much as a modern hog. Some plesiosaurian remains such as a 29 metres 10 ft long set of highly reconstructed and fragmentary. In general plesiosaurians varied in adult length from between 15 metres 5 ft to about 15 metres 49 ft. It is believed that these animals behaved very much like tea turtles live today.

πλησίος plesios near to σαῦρος sauros lizard is a genus of extinct large marine sauropterygian reptile that lived during the early part of the jurassic period and is known by nearly complete skeletons from the lias of england. An even larger pliosaur from the jurassic period pliosaurus funkei known colloquially as predator x was unearthed in svalbard in 2009. Plesiosaurus eyes were positioned to the sides of their head looking upwards so they could ambush their prey from below. The big fishbigger fish template applies throughout evolutionary history. These reptiles were also smaller than pliosaurs with plesiosaurus coming in at only about 15 feet long and 1000 pounds. The plesiosaurus can hold its breath for 1 hour.

By the end of the mesozoic era these marine reptiles had been widely supplanted by even more vicious mosasaurs which likewise succumbed to the kt extinction 65 million years ago. The heyday of the plesiosaurs and pliosaurs was the middle to late mesozoic era especially the late jurassic and early cretaceous period. Its length and weight are estimated at 15 metres about 50 feet and 45 tonnes almost 100000 pounds respectively. The media published exaggerated reports claiming it was 25 metres 82 ft long and weighed up to 150000 kilograms 330000 lb which would have made it among the largest predators of all time. It is distinguishable by its small head long and slender neck broad turtle like body a short tail and two pairs of. The specimen is actually a very large plesiosaur possibly reaching 15 m 49 ft in length.

It weighed around 450 kg 1000 lbs i hope my answer helped everyone. 6 to hit reach 10 ft one target. The plesiosaurus had a body length of 46 14 m and a typical height of 115 35 m. The group thus contained some of the largest marine apex predators in the fossil record roughly equalling the longest ichthyosaurs mosasaurids sharks and toothed whales in size. 14 3d6 4 piercing damage.

Gallery of Plesiosaur Weight And Height