Terrible Lizards - a bestiary

Believe it or not, I'm not familiar at all with Dungeons & Dragons. Of course I know what it is, and that there's a Dungeon Master overseeing things and lots of high fantasy and dice and such, but not much more than that. It's just not something that I've really been exposed to (if you'll forgive the use of a word that makes it sound slightly unseemly). So, I was intrigued when we were contacted by Ralph Stickley, who's produced a bestiary entitled Terrible Lizards, with the laudable aim of bringing up-to-date dinosaurs to the game.