The Pteranodon is a minor alter ego of Calvin's. It appeared in a single Sunday strip, where Calvin read his book on dinosaurs and enacted a pteranodon fantasy by dressing up as one and jumping off the roof of his house in an attempt to fly.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.