Authentic dinosaur bone chunks that are partially polished to show the color and patterning inside. As there are multiple in stock, we hope you will trust us to choose the best available at time of purchase. There may be some variation in size/shape from the photo shown.
Measurements: ~1-1/2 to 2-1/2" long each
Time Period: Jurassic ~160 MYO
This genuine piece of fossilized dinosaur bone is from the Jurassic Period, 160 million years ago. Many of these bones were found in the “dinosaur graveyards” exposed in the Morrison formation in Wyoming and Utah. The term fossilized is important. It is not the dinosaur bones themselves that paleontologists find, but their stony replicas. Fossil bones are created by the slow replacement of bone molecules with the molecules of minerals in ground water. This process sometimes preserves even the delicate cell structure of the bones. Other times the bones dissolve completely and only their imprint is left on the rocks.