From the publisher's website: "Humans and dinosaurs go together like gamers and pizza. That tens of millions of years separated the last of the dinosaurs from the first of the humans is a mere inconvenience, easily ignored. GURPS Lands Out of Time is a sourcebook for human/dino adventuring, providing all you need to know to place man and giant reptile side-by-side, whether it's a 'Lost World' adventure, caveman slapstick, or something in between. GURPS Lands Out of Time is an e23 original game setting for GURPS Fourth Edition."