You said it yourself, very reptilian. But the description on the arms, "Give me your arm, oh bearer mine. Let me help you fill the world with teeth." is a reference to (potentially) Greek mythology, namely, sowing dragon's teeth into the ground causes to most fearsome warriors to grow and attack.

[quote]I do not think it is a dragon but it is the so called "dragon" we saw in the Launch Gameplay trailer. I think that it is an Ahamkara because The hunter exotic arm armor is a Young Ahamkara's Spine http://destiny.wikia.com/wiki/Young_Ahamkara%27s_Spine To me this spine looks very reptilian. The skull on the shoulder of the hunter looks similar to the skull on the wall of your picture. The Warlock also has a full helmet that is the Skull of Dire Ahamkara http://i2.wp.com/destinynews.net/wp-content/uploads/2014/07/exohelm785.png This skull is closer to the size of your "dragon" skull It may not look very similar but I think that is because It had to be fitted to a warlocks helmet style. So in conclusion no you did not see a dragon skull, I think that is an adult Ahamkara skull[/quote] Compelling argument here. Not a dragon by standard means. Tis a space dragon then. Lol

Does it breath space magic? Hmmm? [spoiler][b][i][u]HMMMM???[/u][/i][/b][/spoiler]

Yes, that is true