Late Jurassic
Western North America

Life as a dinosaur predator was rough and tumble. Battling over prey, carcasses, mates, and territory could easily result in an injury. Although it is not unusual to see a pathology in the bones of Allosaurus, these injuries are rarely seen in museum exhibits.

This juvenile Allosaurus forearm bone was injured during life, but the large amount of roughened bone that formed over the break as it healed shows that the animal lived long after the injury. The break did get infected and the deep grooves (lesions) penetrated the bone and allowed pus to drain. An uninjured radius is included for comparison.

Size: 6" long

WEP, with informative label

Price: $35.00 (set)

Click on image to enlarge.