Itemirus medullaris, is extremely poorly known, despite the fact it was found in the 50's, which is unfortunate because it seems to represent a huge species of velociraptorinae, making it a first. I was also going to note the huge dromaeosaurid teeth found in England as well as a few fragmentary remains that might belong to dromaeosaurids, but since they all haven't been named or properly described yet, we're just going to have to stick with these guys for the time being.
Expect more deinonychosaurs soon, and remember that I take requests for post topics. I might even make a video if someone really requests it. :)