- Dinosaur Tooth
- Cretaceous Age
- Hell Creek Formation
- Garfield County, Montana
- Specimen measures approx. 5/8″ long
Dromaeosaurus was a small carnivore, about 2 m (6.6 ft) in length and 15 kg (33 lb) in weight. Its mouth was full of sharp teeth, and it had a sharply curved “sickle claw” on each foot. It lived during the Campanian stage of the Late Cretaceous, however, some fragmentary remains such as teeth which may belong to this genus have been found from the late Maastrichtian age Lance and Hell Creek Formations, dating to 66 million years ago. Teeth have also been found in the Aguja Formation
Dromaeosaurus had a relatively robust skull with a deep snout. Its teeth were rather large and it had only nine of them in each maxilla. Dromaeosaurus also had a vein at the back of the head, the vena capitis dorsalis, that drained the front neck muscles through two long canals running to the posterior surface of the brain.