Waxaa laga soo xigtay in uu ku tilmaamay muunad ee 1916 sida nooc cusub, Prosaurolophus. doorashada Brown ee magaca ka timaadaa marka la barbardhigo in Saurolophus jinsiga, taas oo uu ku tilmaamay in 1912. Saurolophus lahaa la mid ah laakiin dheer iyo in ka badan spike-sida madaxa crest. madaxa lahaa muzzle dhaawacmay oo si qalad ah dib loo dhisay aad u dheer, laakiin weli ka fiican ayaa ugu dhakhsaha badan laga helay in ay muujiyeen qaabka dhabta ah; mid ka mid ah waa qalfoof ku dhowaad dhamaystiran iyo qalfoof, ku tilmaamay by William Parks in 1924.
Webiga Red Deer