maiasaur

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DinosaurDays! An animated learning website and ios app for kids. An animated look at your favorite dinosaurs, fossils, paleontology and the study of evolution. • See them all on www.dinosaurdays.com or download the app on • https://itunes.apple.com/us/app/dinos... • NAME: MAIASAUR (MY-ah-saur), meaning: Good Mother Lizard • SIZE: 30 feet long, 8 feet tall (the size of a school bus), weighed 4 tons • TYPE OF DIET: Herbivore (leaves, berries and seeds) • WHEN: Late Cretaceous period (80 million years ago) • WHERE: Montana (North America), Western Canada • Maiasaur lived about 80 million years ago. It was one of the last kinds of dinosaur living just before they died out 65 million years ago. Maiasaur grew to be 30 feet long, which is about the size of a school bus. Maiasaur weighed about four tons. It was part of the family of dinosaurs called hadrosaurs. It had four fingers on its hands and its back feet had hard toes like a deer. • Maiasaur normally walked on four legs, but when it needed to run quickly, it would run on its hind legs. It was a fast runner. Its long, thick tail was good for balance. Running was its only way to escape hunting carnivores like Deinonychus and Troödon. • Maiasaur was a large herbivore, meaning that it only ate plants. An adult Maiasaur would need to eat about 200 pounds of leaves, berries and seeds every day to stay alive. It would snip down plants with its toothless beak and chew them up with its grinding back teeth. Maiasaur had cheek pouches, so it could store food in its mouth and chew everything carefully before swallowing. These dinosaurs moved about in huge groups. When the food in one place was eaten, the Maiasaur would all move together to another place. • About 10,000 Maiasaur fossils were found together in one place. The adult Maiasaur were found by their nests, near their eggs and babies. The nests were about 25 to 30 feet apart, about the length of an adult Maiasaur. Newly hatched Maiasaur babies could walk as soon as they were hatched. But baby Maiasaur stayed in the • nest and were fed by their mothers until they were older. This is how Maiasaur got its name, which means “good mother lizard”.

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