Skip to main content

Tylosaurus dyspelor [art original] / [Charles R. Knight]

Identifier: Floor 1, Stack 1-11

Scope and Contents

The top illustration, by Charles Knight, was reproduced in Henry Fairfield Osborn's article entitled: A complete mosasaur skeleton, osseous and cartilaginous, issued as Memoirs of the American Museum of Natural History, v. 1, pt. 4 (Oct. 1899), on page 186. The bottom illustration is a variation of the illustration on that same page and was based on drawings by W.D. Matthew and Bruce Horsfall under Osborn's direction. Published illustrations lack textual labels of the animal's parts. Illustration captions: Restoration of the great marine lizard (top); Restored skeleton of the great marine lizard (bottom).

Tylosaurus, which swam in prehistoric seas between 87 and 82 million years ago, was a fierce marine reptile that used its sharp teeth and huge jaws to feed on sharks and other marine reptiles, such as plesiosaurs, as well as fish. A Tylosaurus could grow as long as 50 feet and was a superb swimmer.


  • 1899?



2 Items : 2 paintings : watercolor and pencil on paper ; 32 x 112 cm. each, in frame 94 x 135 cm.

Immediate Source of Acquisition

Transfer, Paleontology Department, 2014 March 14.

Language of description
Script of description
Code for undetermined script

Repository Details

Part of the Museum Archives at the Gottesman Research Library Repository

American Museum of Natural History
200 Central Park West
New York NY 10024 USA
(212) 769-5420