The most distinctive thing about Megacerops was its skull

approximately 12-13 million years ago

Pachyrhinosaurus lacked horns on top of its skull

The Model Pose represents a specimen of Rhomaleosaurus swimming along the seabed in search of one of its possible prey

suggesting parental care behaviour

Triceratops dead Variant:Hand painted The most distinctive thing aboutTriceratops (T. horridus 'Three Horned Face') is a genus of chasmosaurine ceratopsid dinosaur that first appeared during the Maastrichtian Age of the Late Cretaceous, approximately 68 to 66 million years ago. Triceratops is characterized by having 3 horns on its skull, a parrot's beak and a large bony frill on its neck; The horns could have been used to defend themselves against attacks by Tyrannosaurus and other predators of the time. Triceratops was