The Dilophosaurus was one of the largest Carnivorous Dinosaurs of the Jurassic period, were as in Jurassic Park the story is quite different.
When Dennis Nedry is trying to flee the park and accidentally crashes and when he tried to get out of the car so he could go on foot, he trips and falls down a hill where he encounters a young Dilophosaurus. He finds it quite funny at first but he tries to get it to leave but it doesn't and instead spits a paralysing so he flees back to his car. The Dilophosaurus follows and gets in. It then eats Nedry.