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Parasaurolophus was a huge plant-eating hadrosaur that weighed as much as a full-grown African elephant. Scientists believe these animals produced sounds by forcing air through the hollow crests on their heads.

Vital Statistics

Genus Name: Parasaurolophus ("like Saurolophus lizard")
Type Species: * P. walkeri (Parks, 1922)
Length: 33-36 feet (10-11 meters)
Weight: 3-4 tons
Time: 76-65 million years ago (Late Cretaceous)
Place: Alberta (Canada), Montana, New Mexico
Diet: plant-eater (herbivore)

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