Saltwick Formation
Introduction The '''Saltwick Formation''' is a Middle Jurassic geologic formation in Yorkshire and the western North Sea. It is primarily Aalenian in age. Fossil footprints, assigned to the tetrapod ichnogenus ''Characichnos'', as well as stegosaur tracks have been reported from the formation. An indeterminate sauropod, nicknamed Alan, has also been reported from the formation.
See also * List of dinosaur-bearing rock formations** List of stratigraphic units with ornithischian tracks*** Stegosaur tracks
Footnotes
References * Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds. ): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. .