Dromaeosauridae
They first appeared in the mid-Jurassic Period ( late Bathonian stage , about 167 million years ago ) and survived until the end of the Cretaceous ( Maastrichtian stage , 66 ma ) , existing until the Cretaceous–Paleogene extinction event . 
<triplet> Maastrichtian <subj> Cretaceous–Paleogene extinction event <obj> followed by <triplet> Cretaceous–Paleogene extinction event <subj> Maastrichtian <obj> followed by