Morrison-Colorado

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Beautiful preserved cell structure in this piece of dinosaur bone from the Morrison Formation of Colorado.  The bone has been “agatized”, replaced with silica based compounds.  The larger cell structure indicates that it’s most likely from a theropod such as Allosaurus.  The bones of sauropods have smaller cells.

Just added to FossilEra.com: https://www.fossilera.com/fossils-for-sale/polished-dinosaur-bone