This Specimen has been sold.
Unidentified Theropod Caudal Vertebrae
This is an unidentified caudal vertebrae that belonged to some sort of theropod dinosaur. It was found in the Hell Creek Formation of Montana. From the size it likely belonged to an Ornithomimid or a Dromaeosaur. It has some weathering that has revealed some of the hollow structures within and the processes have eroded away.