Dracoraptor had pointed and serrated teeth, indicating it was a meat-eater. But the teeth were small, about one centimetre long, showing it ate small vertebrate animals. In the early Jurassic, South Wales was a coastal area with several small islands in a warm shallow sea. The area which is now Lavernock Point was offshore, so the cadaver of Dracoraptor had probably been washed into the sea from the land to the north. Despite the lack of data regarding its ecology, the authors in 2016 had it tentatively illustrated as a "shore-dwelling predator and scavenger".
