Its name means before Ceratosaurus. It was initially thought to be an ancestor of Ceratosaurs, due to the similar small crest on its snout, but this trait is now known to be characteristic of early tyrannosaurs such as Guanlong. It has become one of the earliest known members of tyrannosaurids, which fed on insects, lizards, mammals and frogs.
This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.