One more Dinovember.
Calvinosaurus wattersonii, named after its discoverer, was a late Jurassic allosaurid large enough to eat an Ultrasaurus in one bite. Paleontologists agree this massive theropod was the awesomest dinosaur.
(no one said they have to be real dinosaurs, right?)
Link
Velantian
Anyone who doubts the existence of the calvinosaurus has never had access to a transmogrifer.