11. Parasaurolophus
This wouldn’t be an honest dinosaur ranking if it didn’t include at least one duck-billed dinosaur (a hadrosaur), which went extinct along with nearly all other dinosaurs 66 million years ago. Parasaurolophus is recognizable for its pronounced head crest. The head crests were hollow, and paleontological consensus is that they likely were used for making noise, as well as being visual ornaments. I like parasaurolophus because it looks like a dinosaur that had sinus issues, something I relate to deeply.
