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Parasaurolophus facts for kids

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Parasaurolophus
Temporal range: Upper Cretaceous
Sketch parasaurolophus.jpg
Parasaurolophus walkeri
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Ornithischia
Suborder: Ornithopoda
Family: Hadrosauridae
Tribe: Parasaurolophini
Genus: Parasaurolophus
Parks, 1922
Type species
Parasaurolophus walkeri
Parks, 1922
Species
  • P. walkeri Parks, 1922
  • P. tubicen Wiman, 1931
  • P. cyrtocristatus Ostrom, 1961
  • P. jiayensis? Godefroit, Zan & Jin, 2000
Synonyms
  • Charonosaurus?
    Godefroit, Zan & Jin, 2000
  • Paralophosaurus Martin, 2014 (lapsus calami)

Parasaurolophus is a genus of ornithopod dinosaur from the Upper Cretaceous of what is now North America, about 76.5–73 million years ago. Its name means "near crested lizard". It was given this name because when it was first discovered scientists thought it was related to Saurolophus. It was a herbivore that walked both as biped and a quadruped. It probably lived in herds.

Parasaurolophus was a hadrosaur. They had a large head crest, which was a long curved tube. It went upwards and back from the skull. The crest has been much discussed by scientists. They think its main functions were visual recognition of species and sex, acoustic resonance (making a loud sound), and thermoregulation. Parasaurolophus is one of the rarer hadrosaurs: there are only a few good specimens.


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