Matthew and Brown originally placed Dromaeosaurus to its own subfamily , the Dromaeosaurinae , within the `` Deinodontidae '' ( now known as Tyrannosauridae ) based on some similarities in the general proportions of the skull .
Matthew and Brown originally placed Dromaeosaurus within `` Deinodontidae '' ( now known as Tyrannosauridae ) , based on some similarities in the general proportions of the skull .