In 1969 , John H. Ostrom recognized that Dromaeosaurus shared many features with Velociraptor and the newly discovered Deinonychus , and assigned these forms to a new family : Dromaeosauridae .
In 1969 , John Ostrom recognized that Dromaeosaurus shared many features with Velociraptor and the newly-discovered Deinonychus , and assigned these forms to a new family : Dromaeosauridae .