The earliest of the large bipedal dinosaurs, which had two long crests on the head and occurred in the early Jurassic period.
Genus Dilophosaurus, infraorder Carnosauria, suborder Theropoda
Example sentencesExamples
- There are the dangerous velociraptors, which slash and attack in packs; the towering t-rexes, who would be considered aggressive and loud in any neighborhood; the peaceful, foliage-chewing brachiosauri; the hooting, poison-spitting dilophosauri, and many other prehistoric earthshakers.