|Members||Glaurung, Ancalagon, Smaug|
|Distinctions||Fire-breathing; later with wings|
Urulóki were also known as Fire-drakes, fire breathing Dragons. Glaurung, the Father of Dragons, was the first of the species. He first appeared in the middle of the First Age but the Urulóki were known to have survived even after the downfall of Morgoth.