I also need to thank him for tipping me off to Dr. Dinosaur. I don't know how I missed this the first time around. The good doctor, who may not be as much of a genius as he claims, appears to be a naked (i.e. unfeathered) Deinonychus. Dr. Dinosaur was introduced in an Atomic Robo Free Comic Book Day exclusive, and May reports that he's back for more.
I really love this mini: hilarious trash-talking between the two adversaries, with some very funny humor steeped in the pseudosciences. When Dr. Dinosaur claims that he time traveled via the power of crystals, I was downright delighted. Crystals. Freaking crystals.