Dromaeosaurus Claw. Dromaeosaurus lived during the Late Cretaceous- 76.5 and 74.8 million years ago. We find their fossils in the United States and Alberta, Canada. Dromaeosaurus name means "Swift Running Lizard". They were a Theropod walking on two legs. They grew to about 2 metres in length, had lots of sharp teeth, and a sickle-like claw on each foot. Claw measures 5 CM x 2 CM.