DEAGOSTINI / UIG / SCIENCE PHOTO LIBRARY DEAGOSTINI / UIG / SCIENCE PHOTO LIBRARY
Maiasaura dinosaur egg hatching. Computer illustration of a Maiasaura sp. dinosaur hatching from its egg. This herbivorous ornithopod hadrosaur (duck-billed dinosaur) lived around 76.7 million years ago, during the Late Cretaceous period, in what is now Montana, USA.
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