パラサウロロプス Parasaurolophus オーストラリア恐竜大陸
Ornithischia / Genasauria / Cerapoda / Ornithopoda / Iguanodontia
/ Family: Lambeosauridae / First Described: 1922 / Found: North America: Canada, USA / Length: 10 m / Weight: 3 t / Food: Plants / Young: Eggs / Lived: Late Cretaceous 82-66 million years ago
Parasaurolophus was first discovered in 1921 during one of the great expeditions to the Canadian badland area of Alberta. Here, the Red Deer River has cut hundreds of small valleys down into the local rocks to dramatic effect. The region was difficult to cross by foot or on horses, so that the dinosaur explorers usually travelled by river. Today travel there is much easier and thousands of visitors can go to the Tyrell Museum in Drum Heller and take part in organized digs.
Beautiful displays of over 30 types of dinosaurs include superb skeletons of Parasaurolophus. Though not as big as Lambeosaurus, the 'Side-ridged lizard' has a spectacular, curved crest that stretches up and over the snout for almost 2 m. There are no holes in the crest and the old idea that it might have served as a snorkel underwater has now been abandoned. Instead, the tubular crest may have amplified the sound as groups of dinosaurs called to one another while they were feeding in wooded areas.