The earliest of the large bipedal dinosaurs, which had two long crests on the head and occurred in the early Jurassic period.
More example sentences
- 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.
Definition of dilophosaurus in:
- The US English dictionary