Parasaurolophus -A herbivore from the Late Cretaceous Era (76-73 Million years ago). The Parasaurolophus is from the hadrosaurid family which is a very unique family of dinosaurs. Typically the dinosaurs from this group had strange shaped heads. The Parasaurolophus proves no different because it had a cranial crest which looked like a long curved tube projecting upwards and back from the skull. This could’ve been used for recognition of each other, loud unique sounds, and thermoregulation.