Maiasaura, Juvenile Lower Jaws Dilophosaurus but was a closely

but was a closely

Location: Utah Late Jurassic

This sauropod was about 60 ft long and weighed roughly 30 tons

horny layer of keratin

This is due to the fact that the shale layers that the fossils are found in are made up of about 40% water and 8% oil

Maiasaura, Juvenile Lower Jaws Dilophosaurus but was a closelyMaiasaura (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