Trachodon (meaning "rough tooth") is a dubious genus of hadrosaurid dinosaur based on teeth from the Campanian-age Upper Cretaceous Judith River Formation of Montana, U.S.[1] It is a historically important genus with a convoluted taxonomy that has been all but abandoned by modern dinosaur paleontologists.[2]
Despite being used for decades as the iconic duckbill dinosaur, the material it is based on is composed of teeth from both duckbills and ceratopsids (their teeth have a distinctive double root[3]), and its describer, Joseph Leidy, came to recognize the difference and suggested limiting the genus to what would now be seen as ceratopsid teeth.[2] Restricted to the duckbill teeth, it may have been a lambeosaurine.[4]
Trachodon has been suggested to play 26 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
