This is a 4.7" tall, caudal (tail) vertebra of an Allosaurus collected this past summer from our partners private quarry east of Dinosaur, Colorado. It is part of a partial, articulated tail that was found in the quarry, but unfortunately the rest of the animal had long since eroded away. The individual vertebra were carefully prepared from the hard stand stone they were found in and individually mounted on custom metal display stands.
The bone is a jet black coloration and the centrum and lower portion of the process is very solid. Most of the top portion of the process has been reconstructed though.
These custom mounted, fossil Allosaurus vertebrae are spectacular display pieces and will sell quickly as we don't get individual allosaurus bones in very often.
Allosaurus was a theropod of the Late Jurassic that lived from 156 to 145 million years ago. It was a predator with a massive skull, serrated teeth, and gaping jaws. This powerful and plentiful carnivore genus could grow more than 30 feet long. Due to how plentiful it's fossils
are in the Morrison Formation, it's been suggested that they may have been a pack hunter.