Triceratops
Triceratops, with its large bony frill and three horns, is one of the most recognizable of all dinosaurs. Triceratops is estimated to have reached about 7.9 to 9 metres in length, and 6.1–12 tonnes in weight. Triceratops did not chew its food like other plant eaters, but sliced and crushed plants in its mouth.
Pachyrhinosaurus
Unlike its famous cousin, Triceratops, Pachyrhinosaurus did not have well developed horns over the nose and eyes. Instead, the horns spread across the top of the skull to form massive buttresses of bone. Found in Dinosaur Provincial Park, this Pachyrhinosaurus is significantly older than any other found, and may be a new species.
Euoplocephalus
Euoplocephalus, meaning "well-armoured head", was one of the largest ankylosaurs - about the size of a small elephant. This plant-eating animal is among the more common in the fossil record, which means its spiked armour, low-slung body, and club-like tail are well documented.
Mosasaur
Not everything in Dinosaur Hall is a dinosaur. This odd looking creature is one of the largest lizards that ever lived. Measuring more than 15 metres long Mosasaurs had powerful jaws, sharp teeth, and flattened tails to help propel them through the water.
Trinacromerum osbornii
Trinacromerum was a large, streamlined plesiosaur. Sporting a short neck, its limbs were modified to form wing-like flippers. It likely propelled itself through water the way a sea turtle does today.
