Cerapod dinosaurs compared to a rhino. The seven adult animals shown here are, from left to right: Nedoceratops; Torosaurus; Albertaceratops; a White Rhinoceros (Ceratotherium simum); Zuniceratops; Pentaceratops; and Triceratops. The White Rhinoceros is around 1.8 metres tall at the shoulder and weighs around 3200 kilograms. These herbivorous horned, beaked cerapod dinosaurs (ceratopsians) were alive from 90 to 68 million years ago during the Cretaceous period, ranged in size from 1 to 3 metres tall at the shoulder, and ranged in weight from 110 to 11,000 kilograms. They also had neck frills. Individual pictures also available.