deviantArt is a wonderful place for awesome dinosaur artwork... Check out this guy's brilliant Jurassic Park/Resident Evil crossover fanart!
http://hellraptor.deviantart.com/gallery/25996224

Might serve as inspiration for if, say, the taint of the Far Realm leaked into an ancient primordial valley where dinosaurs dwell, corrupting the great thunder-lizards and twisting them into huge, hideous and horribly dangerous aberrations.