'before lizard crest [Saurolophus]'
Prosaurolophus is known from the skeletons of 24-29 individuals, some articulated (the bones were joined as they would have been in life).
Taxonomy: Dinosauria, Ornithischia, Genasauria, Cerapoda, Ornithopoda, Euornithopoda, Iguanadontia, Euiguanadontia, Dryomorpha, Ankylopollexia, Iguanodontoidea, Hadrosauridae, Euhadrosauria, Hadrosaurinae
Named by: Brown (1916)
Type species: maximus