Hadrosaurs were herbivorous dinosaurs also known as ‘duck billed dinosaurs’ and were divided into two main groups. The lambeosaurs (lambeosaurines) which had large hollow crests or tubes on their heads possibly for communication, display, and thermoregulation. The other group, who were lacking suck cranial crests, are the saurolophines (Saurolophinae)

Generally the adult hadrosaurs would walk on four legs with short bursts of speed accomplished by running on two.

Multiple rows of teeth that were replaced on a constant basis allowed them to constantly grinding plants.

Early education through prehistoric toys : Hadrosauridae (Hadrosaurs)


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From the Late Cretaceous in what is now far East Russia, this is the most complete hadrosaur discovered outside of North America.


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A hadrosaur formally thought to be Kritosaurus, having a thin and arching nasal hump (sometimes referred to as a 'roman nose'), it also had 1.5 inch high pyramidal scales on it's back.


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An ornithodod with a large crest probably used for communicating and maybe even thermoregulation. Parasaurolophus lived during the Late Cretaceous time period, in what is now North America.