Dromaeosaurus ("Swift Running Lizard") was a species of Dromaeosaur raptor dinosaur that lived in Late Cretaceous in North America during the last days of the dinosaurs, from 90-65 million years ago.
This Dinosaur gives its name it to the entire family of the Dromaeosauridae, that being all of the 'Raptors'. It was around 2 metres long, similar to the close relation to this predator Velociraptor, which happened to be living at the same time on the other side of the world almost.
Dromaeosaurus lived during the middle to Late Cretaceous period from 90,000,000-65,000,000 years ago. It died out with the other dinosaurs at the end of the Cretaceous.
Dromaeosaurus was small compared to other members of its family. They stood 3-4 feet tall at the hips, measured 6 feet long and weigh less the 100 lbs. A part time scavenger of the Late Cretaceous, these predators were small but were members of the raptor family.
Dromaeosaurus was unique among other dromaeosaurs as, unlike other medium-sized dromaeosaurs such as Velociraptor, Dromaeosaurus had a short, massive skull, deep mandible, and robust teeth, which seem to be made for crushing and tearing meat due to the heavy wear marks on them.
It had a very stiff tail, like all dromaeosaurs, and it had a huge, sickle-like claw on its second toe, most likely used to stab the throat of its prey. It was the first non-dubious dromaeosaur found and is the type genus. It is closely related to such large dromaeosaurs as Utahraptor.
BehaviorEditLike all members of the raptor family, Dromaeosaurus hunted in pakcs from numbers of 3-12. Using darkness, these pack hunters tried to unsettle herds of plant eating dinosaurs and isolate the youngsters, even herbivores as big as Torosaurus.
Even alone, a single Dromaeosaurus hunted other small dinosaurs and even tried to feed from T. Rex nests.