Ceratopsians — horned dinosaurs — were distinctive features of the fauna of the Cretaceous period in East Asia and western North America. There have been hints that they might also have occurred elsewhere, but this has not been definitive, until now. The discovery of a ceratopsian, Ajkaceratops kozmai, from what is now Hungary shows that Late Cretaceous biogeography still has surprises in store.
- Attila Ősi
- Richard J. Butler
- David B. Weishampel