Parasaurolophus, meaning "near crested lizard, is a genus of ornithopod dinosaur that lived in what is now North America during the Late Cretaceous period, about 76.5–73 MYA.


Parasaurolophus was a herbivore that walked both as a biped and a quadruped. Three species are recognized: P. walkeri (the type species), P. tubicen, and the short-crested P. cyrtocristatus. Remains are known from Alberta (Canada), and New Mexico and Utah (USA). The genus was first described in 1922 by William Parks from a skull and partial skeleton found in Alberta. Adults reached an estimated 9–11 meters(30–36 feet) long and weighed about 2-3 tons.

Parasaurolophus was a lambeosaurine hadrosaurid, part of a diverse family of Cretaceous dinosaurs known for their range of bizarre head adornments. This genus is known for its large, elaborate cranial crest, which at its largest forms a long curved tube projecting upwards and back from the skull. Charonosaurus from China, which may have been its closest relative, had a similar skull and potentially a similar crest. Arynesaurus and Blasisaurus may have been closer however. The crest has been much discussed by scientists; the consensus is that major functions included visual recognition of both species and sex, acoustic resonance, and thermoregulation. It is one of the rarer hadrosaurids, known from only a handful of good specimens.

In Walking with... SeriesEdit

Walking with Dinosaurs: Inside Their World Edit

Parasaurolophus is one of the viewable dinosaurs in this app.

In other mediaEdit

Clash of the DinosaursEdit

Parasaurolophus was one of the dinosaurs featured in this series.

Prehistoric ParkEdit

Read more at the Prehistoric Park Wiki

Parasaurolophus was one of the animals featured in the episode "SuperCroc", where it was prey to carnivores like Albertosaurus and Deinosuchus.

Jurassic ParkEdit

Read more at the Jurassic Park Wiki

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