aunque esta estructura no era tan elaborada como las crestas que se desarrollarían en ceratopsianos posteriores

where it hunted prey in packs or family groups

5 a 6 metros de longitud y pesando alrededor de 2 a 3 toneladas

More likely

Hatzegopteryx is thought to have been an active predator

Triceratops horridus `Big John´ Variant:Primed aunque esta estructura no eraTriceratops (T. horridus 'Three horned face') is a genus of chasmosaurine ceratopsid dinosaur that first appeared during the Maastrichtian Age of the Late Cretaceous, approximately 6866 million years ago. Triceratops is characterized by having 3 horns on its skull, a parrot beak and a large bone frill on its neck; the horns could have been used to defend against attacks by Tyrannosaurus and other predators of the time. Triceratops was a browsing