what dinosaur has 0 teeth

Berthasaura leopoldinae is the dinosaur that had no teeth. It is a rare toothless dinosaur that is an oddity among its carnivorous cousins. The skeleton found in Paraná is of a young animal, and “on the upper arch, there is no evidence of tooth sockets,” says Alexander Kellner, a paleontologist on the team that found the fossil and director of the National Museum of Brazil. Limusaurus inextricabilis is another toothless dinosaur discovered in northwestern China, but it lost its teeth as an adolescent and didnt grow another set. On the other hand, Berthasaura never had any teeth at all.