(Cheryl of the Clue Crew walks with a robotic Stegosaurus.)  You might encounter a real Stegosaurus if you can go back to the late part of this geological period, a good one for dinosaurs
.... Jean Fritz, "Making It Real/' Children's Literature in Education ERIC 22 2 1 ..... 
of the Napoleonic era of the late seventeenth and early eighteenth centuries.