Tylosaurus

Tylosaurus kansasensis mounted skeleton in the Rocky Mountain Dinosaur Resource Center in Woodland Park, Colorado

Photo montage of different specimens of mosasaurs: Opetiosaurus Vallecillosaurus Halisaurus Plotosaurus Platecarpus Tylosaurus

Shown is a drawing from Williston (1898) that shows the skeletons of three common species of mosasaurs from Kansas; Clidastes propython, Platecarpus tympaniticus and Tylosaurus proriger. Although these three species are shown about the same size in the drawing, in life, Clidastes was the smallest (about 12-15 feet); Platecarpus was the next largest (about 24 feet) and Tylosaurus was the largest (30 plus feet):

Digital copy of 1978 slide. Natural History Museum, Smithsonian Institution, Washington, D.C. Complete indexed photo collection at WorldHistoryPics.com.

Tylosaurus proriger with tail fluke.

New reconstruction of Tylosaurus proriger, based on recent data about mosasaur's soft tissue

Tylosaurus reconstruction. From Osborn, H. F. (1917). The origin and evolution of life, on the theory of action, reaction and interaction of energy.

Depiction of Tylosaurus, from Lucas, F.A., 1901. Extinct Animals.

Fragmentary fossils of various tylosaurines MCM.M0009 (A ; Taniwhasaurus 'mikasaensis'), SAM-PK-5265 (B ; Taniwhasaurus 'capensis') and MNHN 1896-15 (C ; Tylosaurus gaudryi).

Restorations of Pteranodon sternbergi (left), Pteranodon longiceps (top), Nyctosaurus (right), and Tylosaurus (bottom).

Tylosaurus swimming through the sea

Drawing of the skull of MCZ 4374, the holotype of Macrosaurus proriger (Tylosaurus proriger) from Cope (1870)

Bones and remains of prehistoric animals A massive marine lizard and apex predator, growing to length of 14 m (46 ft).[1]