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Location: Utah Late Jurassic
This sauropod was about 60 ft long and weighed roughly 30 tons
Western Colorado
horny layer of keratin
Maiasaura, Juvenile Lower Jaws Dilophosaurus Location: Utah Late JurassicMaiasaura (meaning "good mother lizard") is a large herbivorous hadrosaurid ("duck billed") dinosaur genus that lived in the area currently covered by the state of Montana in the Upper Cretaceous Period, about 76. 7 million years ago. The first fossils of Maiasaura were discovered in 1978. In 1979, the genus was named. The name refers to the find of nests with eggs, embryos and young animals, in a nesting colony. These showed that Maiasaura fed its
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