At last! A good dinosaur title to use in preschool story time!" ("School Library Journal"). Dad isn't himself today. In fact, he's become a dinosaur! And for lucky little Mikey, that means a day full of prehistoric fun, including a high-riding trip to school, the most raucous recess ever, and a muddy romp in a nearby swamp. "Exaggerated, comic illustrations extends the story in a way young children will applaud."--"The Horn Book." Full color.