They say a picture is worth a thousand words. If that’s true, this should explain just about everything about dinosaur metal:
Hevisaurus was a band made up of members from legendary band Dio and Sonata Arctica. Their goal was to recrod heavy metal for children. After an intense brainstorming session, someone thought of buying a bunch of dinosaur suits and the idea stuck. The music itself is in Finnish, but the lyrics usually deal with popular children’s stories and, you know, dinosaurs. Because that’s the heart of metal.
For more information on this and other dinosaur bands, check out the Metal Archives.