The Apatosaurus was one of the largest land animals to walk planet Earth. The first fossils of the Apatosaurus appeared in North America and dated back to the late Jurassic period. And this colossal...
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A Tarbosaurus might be the winner based solely on size comparison, but the spiky little Polacanthus was too strong to crush. Tarbo trying to eat the Polacanthus would be like trying to eat a turtle...
A Brontosaurus was a very large and gentle giant that lived during the Jurassic period around 120 million years ago in the western United States at the Morrison Formation in Wyoming and parts of...
An Ankylosaurus was an armored dinosaur with osteoderms or scutes all over the top of its body. These bony plates protected the Ankylosaurus from a Tyrannosaurus rex. The Ankylosaurus also had a...
An Allosaurus was a large dino from North America and is a Utah state fossil. Though it looked similar to a T-rex, Allosaurus, and T-rex were not closely related. The Allosaurus had sharp teeth and...
A Brachiosaurus was a giant long-neck dino with a crest on top of its head. Many paleontologists believe the crest had nasal openings for the Brachiosaurus to use as a snorkel. This adaptation would...