Glaurung the Dragon by sboterod on deviantART

Glaurung: the first dragon of Middle-earth – mogsymakes

Glaurung - the father of dragons by Muto_Scapulari -- Fur Affinity [dot] net

Glaurung, Kaijuwikia Wiki

Smaug on the LOTR Dragon size chart The hobbit, Middle earth, Lord of the rings

turin and glaurung (tolkien's legendarium) drawn by coliandre

The Nerd of the Rings on X: Smaug and Glaurung were based on real dragons Tolkien encountered when he gained access to a secret civilization of dwarves who domesticated the creatures. Here

Comparison of the Dragons of Middle-Earth

Ramblings — Since that dragon chart has quickly become my most

Nasmith - Glaurung, in Alex K.'s Hobbit & Lord of the Rings Comic Art Gallery Room

ArtStation - Glaurung & Turin