One of the First
Eats: Rocks, bugs, coal, wood and other dragons.
Lives: In volcanic lands.
Features: Smoke, Fire proof body, ability to shoot fire, sharp arrow tail and horns.

Storytime!
How the Earth was created: Fire dragon

Long ago, a fire dragon was cuddling the warm star it called home, when an asteroid hit him and knocked him off. He awoke to find a earth dragon helping to heal his wounds on the very same asteroid that knocked him off his star. Soon the asteroid got caught in another star's gravitational pull. The Earth dragon offered to make a home for the fire dragon on the asteroid and he agreed. Soon, in the middle of the giant asteroid there was a home for the fire dragon. The fire dragon slipped down the hole and curled up in his new home. He fell into a somewhat eternal sleep and the exit and entrance would be covered up decades later. To us humans he is called the CORE of the Earth.