Any of many dinosaurs of the infraorder Ceratosauria(noun)
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Use "ceratosaur" in a sentence
"So, I'm still processing the news of the discovery of hard evidence of an enormous lake that existed in the Martian Shalbatana Vallis region some 3.4 billion years ago, when I get word of an exciting new herbivorous Chinese ceratosaur, Limusaurus inextricabilis."
"My previous repost was made to give the background on a recent discovery of Jurassic ceratosaur, Limusaurus inextricabilis, and what it tells us about digit evolution."
"Limusaurus is the first ceratosaur known from East Asia and one of the most primitive members of the group."