Maiasaura, Juvenile Lower Jaws Dilophosaurus The unusually long legs of

The unusually long legs of Atlasaurus- longer than any other known genus of sauropod--point to its unmistakable kinship with the North American and Eurasian Brachiosaurus

horny layer of keratin

The name means "underworld"

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 The unusually long legs ofMaiasaura (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