A theropod from the late Jurassic (150 million years ago) with 3 horns atop it's head that acted as display. It lived alongside the apex predator allosaurus, but they served different niche's, ceratosaurus hunted smaller prey like dryosaurus and fish, while allosaurus hunted larger prey like stegosaurus and sauropods. Allosaurus appeared earlier while ceratosaurus appeared later, but they died at around the same time.
Person 1: yo ceratosaurus is my favorite dinosaur!
Person 2: yutyrannus is my favorite, but ceratosaurus is cool too!
The most bullied dinosaur in dinosaur documentaries
(not a true fact) "the ceratosaurus went extinct because allosaurus ate out the competition" -Jurassic fight club, aka the worst dinosaur "documentary" ever