Williams Formation Explained

Williams Formation
Type:	Geological formation
Age:	Late Cretaceous
Period:	Late Cretaceous
Region:	California
Country:	United States

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.^[1] 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.^[2]

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with indeterminate dinosaur fossils

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. .

Notes and References

1. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
2. Hilton (2003), p. 241.