Dinosaur Bone Fossil Fragments

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 about 2,000 non-avian species of the clade Dinosauria lived during this period. So far, paleontologists have identified and named about half of these.  

Please expect some natural variation.

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