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Dinosaur Bone Fossil Fragments

Dinosaur Bone Fossil Fragments

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Fragments of fossilized dinosaur bones from the Cretaceous period, which was 145.5-65.5 million years ago. Though these fragments may be too small to identify their species with certainty, we can narrow the possibilities based on their age and location of discovery. A 2016 study estimated that there lived about 2,000 non-avian species of the clade Dinosauria during this period. So far, paleontologists have identified and named about half this many. These bones are from Utah, a region with a rich paleontological history. During this time period, the continents of North America and Europe were connected and flowering plants were just beginning to evolve. Details: Two dinosaur bones displayed in an acrylic case
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