Follows Sereno's 1997 excavation in the desert, revealing facts about this giant prehistoric croc that lived and fought among the dinosuars.

"Explorer and scientist Paul Sereno made an extraordinary discovery in the middle of the Sahara desert. While prospecting for dinosaur bones, he stumbled across an ancient human cemetery more than 5,000 years older than the Egyptian pyramids. Who were these people and what were they doing in the middle of the desert? How did they live and die? What can this mystery tell us about our planet? And why are there two distinct groups [Kiffian and Tenerian]...

Describes several unusual animals that roamed the lands and swam in the seas after the dinosaurs died out. Features pop-up and movable illustrations.