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Clidastes propython

(Clidastes velox Williston)

Copyright 2001-2009 by Mike Everhart

Last updated 03/26/2009

These drawings of Clidastes velox were included in S. W. Williston's 1898 mosasaur paper in the University of Kansas Geological Survey, Volume IV.  Clidastes velox is probably a junior synonym of Clidastes propython and is no longer a valid species.

Figure 1: A lateral view of the skull of Williston's Clidastes velox; About 18 inches in length.

Figure 2: A dorsal view of the skull of Williston's Clidastes velox.

Figure 3: A ventral view of the skull of Williston's Clidastes velox.

Clidastes propython: A small mosasaur from the Smoky Hill Chalk


Bell, G. L. Jr., 1997. A phylogenetic revision of North American and Adriatic Mosasauroidea. pp. 293-332 In Callaway J. M. and E. L Nicholls, (eds.), Ancient Marine Reptiles, Academic Press.

Russell, D. A., 1967. Systematics and morphology of American mosasaurs. Peabody Museum of Natural History, Yale University, Bulletin 23.

Williston, S. W., 1898. Mosasaurs. The University Geological Survey of Kansas, Volume IV, Paleontology, Part V, pp. 81-347.