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Good afternoon, Please help to identify the bone in these pictures. I was told the bone was collected in Colorado, and that it is a bone from a dinosaur in the stegosauri family - not stegosaurus itself but another in the line of dinosaurs with spiked tails, and approximately 130 to 65 million years old. I'm attaching several pictures including some that were taken through my jewelers loop. One of those shows the surface of the bone itself, three more show structure inside the bone and some crystal structures. Your help is greatly appreciated