Juan de Santiago - Senior Asset and Creature Artist - All

Dragon Size Chart! Whims from Valadae

Glaurung by YellowPanda2001 on DeviantArt

Ancalagon- The Real Size of the Greatest Dragon in Arda- Solved.

NO SPOILERS] Westeros's Drogon(short necked, younger and faithful) vs Middle Earth's Smaug(Long necked, badass, intelligent, without a master). Who would win? Personally, I prefer short necked dragons but Smaug might can easily

Exploring Middle-earth: The Dragons - Fire and Terror of the North

The One Ring :: View topic - Glaurung the Golden

List of dragons in popular culture - Wikipedia

Dragons The One Wiki to Rule Them All+BreezeWiki

Smaug vs Ancalagon by Valonia-Feline on DeviantArt

Tabletop Games / Our Dragons Are Different - TV Tropes