The baby Parasaurolophus is first seen in the Nesting Grounds scene when he sees a dinosaur's nest and sniffs one of the eggs (presumably Aladar's egg), but Aladar's Mother shoos him of. He then runs to the other nests, but also gets shooed off by the dinosaur mothers guarding them. The Parasaurolophus later runs through the river through a flock of Ichthyornis, and he visually perceives a Longisquama. He then chases the flying lizard and runs into the forest. The Parasaurolophus comes in close proximity to the Longisquama, but it flies up to what appeared to be a tree. The Parasaurolophus then sees a couple saliva drops landing on a tree branch and notices what and where the Longisquama landed on: the nose of a vicious and bloodthirsty Carnotaurus that has been aroused. The Parasaurolophus then runs out of the forest in terror and gets chased by the Carnotaur, which he tries to evade. Luckily for the baby dinosaur, the Carnotaur ran past him to catch a bigger meal, which is a Pachyrhinosaurus. It is unknown what happened to the Parasaurolophus after that, as he is not seen again for the rest of the film.