Note: For the purposes of this article – and in line with Calvin's knowledge – pterosaurs and other prehistoric reptiles will be considered dinosaurs.
List of dinosaurs featured in Calvin and Hobbes
- Small Coelurosaur - possibly Troodon
- A hadrosaur - possibly Edmontosaurus
- Tyrannosaurus rex
Dinosaurs appear in different contexts in the strip. Calvin may imagine himself as a dinosaur, apparently persuaded that his fantasy is a reality, evidenced by how he bites his mom in one strip, and attempts to fly like a pterodactyl in another. Calvin may also simply be daydreaming about dinosaurs, whether in the Mesozoic Era or in a modern setting (dinosaurs are pictured attacking a town and a museum).
The Dinosaur book is a book on dinosaurs that Calvin is seen reading in some strips.
- One time, Calvin is seen reading it while Hobbes is digging a hole that Calvin is in.
- Another time, the book is thrown in a trash can when Calvin imagines himself as a T-rex attacking a dinosaur but failing (in reality, Calvin throwing a snowball at Susie Derkins, who then chases him around angrily).