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Hadrosauridae

Hadrosauridae (duck-billed dinosaurs; subclass Archosauria, order Ornithischia) A family of dinosaurs of possibly amphibious habit which averaged about 9 m in body length. Several mummies of hadrosaur dinosaurs have been found, from which it was possible to establish that they were unarmoured and that the digits of the fore limbs were connected by a web of skin. Hadrosaurs flourished in the Upper Cretaceous.

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Hadrosauridae

Hadrosauridae (hadrosaurs) Duck-billed ornithischian dinosaurs, of possibly amphibious habits, which averaged about 9m in body length. Several mummies of hadrosaur dinosaurs have been found, from which it was possible to establish that they were unarmoured and that the digits of the forelimbs were connected by a web of skin. Hadrosaurs flourished in the Upper Cretaceous.

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"Hadrosauridae." A Dictionary of Earth Sciences. . Encyclopedia.com. 18 Oct. 2017 <http://www.encyclopedia.com>.

"Hadrosauridae." A Dictionary of Earth Sciences. . Encyclopedia.com. (October 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/hadrosauridae

"Hadrosauridae." A Dictionary of Earth Sciences. . Retrieved October 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/hadrosauridae

hadrosaurs

hadrosaurs See HADROSAURIDAE.

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"hadrosaurs." A Dictionary of Earth Sciences. . Encyclopedia.com. 18 Oct. 2017 <http://www.encyclopedia.com>.

"hadrosaurs." A Dictionary of Earth Sciences. . Encyclopedia.com. (October 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/hadrosaurs

"hadrosaurs." A Dictionary of Earth Sciences. . Retrieved October 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/hadrosaurs