This taxon is considered subjective synonym of
of the valid taxon Tylosaurus proriger
according to the Paleobiology Database.
See the page for Tylosaurus proriger →
Bibliography
Original description
D. A. Russell. 1967. Systematics and morphology of American mosasaurs (Reptilia, Sauria). Bulletin of the Peabody Museum of Natural History 23:1-252