Calvin and Hobbes by Bill Watterson for March 13, 1988
Calvin as a dinosaur: The terrible Tyrannosaurus sinks it's teeth into a Triceratops! Triumphant again, the undisputed king of dinosaurs lets out a mighty roar! With savage ferocity, the monster begins it's feast! Limb-severing-bone-crunching and tendon-snapping, he.... Dad: Calvin! That's disgusting! Mom: For heaven's sake, slow down and chew quietly! Calvin: The terrible Tyrannosaurus resumes eating, mortified that someone might see him. The late cretaceous period...when dinosaurs ruled the earth! And Calvin ruled the dinosaurs!