Williams Formation
Introduction The '''Williams Formation''' is a Mesozoic geologic formation. Dinosaur remains (including hadrosaurid fragments) are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus. In 1996 Gino Calvano found foot bones, two cervical vertebrae, and a phalanx (toe) from a hadrosaur in this formation, along the western base of the Santa Ana Mountains in Orange County, California.
See also * List of dinosaur-bearing rock formations** List of stratigraphic units with indeterminate dinosaur fossils
Footnotes
References * Hilton, Richard P. 2003. ''Dinosaurs and Other Mesozoic Reptiles of California''. Berkeley: University of California Press. 318 pp. * Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds. ): ''The Dinosauria, 2nd'', Berkeley: University of California Press. 861 pp. .