I still think it is a dragon, but I figure lets get the numbers of what the majority thinks. Soooo, what do you think?
http://www.destinygamewiki.com/wiki/SUROS_Fire
SUROS Fire Information
SUROS Fire is a Legendary Emblem. It can be obtained by pre-ordering The Taken King expansion.
SUROS Fire is an emblem released in The Taken King expansion (Year 2).
This is a Dragon
https://image.freepik.com/free-vector/dragon-logo_23-2147510251.jpg
This is a Phoenix
http://image.shutterstock.com/z/stock-vector-phoenix-bird-85131550.jpg
This is a Griffin
https://s-media-cache-ak0.pinimg.com/564x/00/34/76/0034769f50a6c45313560c644ebe8c05.jpg
Given the Three Choices, I chose Phoenix...
But I'm leaning towards Griffin.