Dinosaur Facts and Figures: The Theropods and Other DinosauriformesAn illustrated record book of theropod facts and figures from the biggest to the fastest to the smartest The theropod dinosaurs ruled the planet for millions of years, with species ranging from the mighty Tyrannosaurus rex to feathered raptors no bigger than turkeys. Dinosaur Facts and Figures is a stunningly illustrated book of records for these marvelous creatures such as the biggest, the smallest, and the fastest theropods, as well as the ones with